Can't get iPhone app to link to NC instance

[/details]

Nextcloud version (eg, 20.0.5): 28.0.3.2
Operating system and version (eg, Ubuntu 20.04): Ubuntu 20.02
Apache or nginx version (eg, Apache 2.4.25): Apache 2.4
PHP version (eg, 7.4): v8.2

The issue you are facing:

My Nextcloud app is working fine, has been for a few years. I now try to link my wife’s NC app on her iPhone and it’s not working. Resulting in a new security key in her NC account but a 401 error in the app.

Is this the first time you’ve seen this error? (Y/N): Yes

Steps to replicate it:

  1. Install NC 28.0.2 or 28.0.3
  2. Install Social Login
  3. Try to link the NC mobile app of a user using Social Login

The output of your Nextcloud log in Admin > Logging:

No logs appear here when trying to link the app.

The output of your config.php file in /path/to/nextcloud (make sure you remove any identifiable information!):

{
    "system": {
        "overwriteprotocol": "https",
        "overwrite.cli.url": "https:\/\/domain.uk",
        "instanceid": "***REMOVED SENSITIVE VALUE***",
        "passwordsalt": "***REMOVED SENSITIVE VALUE***",
        "secret": "***REMOVED SENSITIVE VALUE***",
        "trusted_domains": [
            "domain.uk",
            "192.168.105.180"
        ],
        "datadirectory": "***REMOVED SENSITIVE VALUE***",
        "dbtype": "mysql",
        "version": "28.0.3.2",
        "htaccess.RewriteBase": "\/",
        "dbname": "***REMOVED SENSITIVE VALUE***",
        "dbhost": "***REMOVED SENSITIVE VALUE***",
        "dbport": "",
        "dbtableprefix": "oc_",
        "mysql.utf8mb4": true,
        "dbuser": "***REMOVED SENSITIVE VALUE***",
        "dbpassword": "***REMOVED SENSITIVE VALUE***",
        "installed": true,
        "memcache.local": "\\OC\\Memcache\\APCu",
        "filelocking.enabled": "true",
        "memcache.locking": "\\OC\\Memcache\\Redis",
        "redis": {
            "host": "***REMOVED SENSITIVE VALUE***",
            "port": 0,
            "timeout": 0
        },
        "default_phone_region": "GB",
        "mail_from_address": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpmode": "smtp",
        "mail_sendmailmode": "smtp",
        "mail_domain": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpsecure": "tls",
        "mail_smtpauthtype": "LOGIN",
        "mail_smtpauth": 1,
        "twofactor_enforced": "true",
        "twofactor_enforced_groups": [
            "admin"
        ],
        "twofactor_enforced_excluded_groups": [],
        "mail_smtphost": "***REMOVED SENSITIVE VALUE***",
        "mail_smtpport": "587",
        "mail_smtpname": "***REMOVED SENSITIVE VALUE***",
        "mail_smtppassword": "***REMOVED SENSITIVE VALUE***",
        "social_login_auto_redirect": false,
        "default_language": "en_GB",
        "default_locale": "en_GB",
        "maintenance": false,
        "maintenance_window_start": 1,
        "theme": "",
        "loglevel": 3,
        "forcessl": true,
        "allow_local_remote_servers": true,
        "session_keepalive": true,
        "session_lifetime": 86400,
        "app_install_overwrite": [
            "flowupload",
            "video_converter",
            "workflow_pdf_converter",
            "flow_notifications"
        ],
        "preview_max_memory": 1024,
        "preview_max_filesize_image": 100,
        "updater.release.channel": "stable",
        "updater.secret": "***REMOVED SENSITIVE VALUE***"
    },

    "apps": {
        "activity": {
            "enabled": "yes",
            "installed_version": "2.20.0",
            "notify_email_analytics_data": "0",
            "notify_email_analytics_dataset": "1",
            "notify_email_analytics_report": "1",
            "notify_email_approval": "1",
            "notify_email_calendar": "0",
            "notify_email_calendar_event": "0",
            "notify_email_calendar_todo": "1",
            "notify_email_comments": "0",
            "notify_email_contacts": "0",
            "notify_email_deck": "0",
            "notify_email_deck_card_description": "0",
            "notify_email_deck_comment": "1",
            "notify_email_favorite": "1",
            "notify_email_file_changed": "0",
            "notify_email_file_downloaded": "0",
            "notify_email_file_favorite_changed": "1",
            "notify_email_group_settings": "1",
            "notify_email_public_links": "1",
            "notify_email_remote_share": "1",
            "notify_email_shared": "0",
            "notify_email_spreed": "1",
            "notify_email_systemtags": "0",
            "notify_notification_analytics_data": "1",
            "notify_notification_analytics_dataset": "1",
            "notify_notification_analytics_report": "1",
            "notify_notification_announcementcenter": "1",
            "notify_notification_approval": "1",
            "notify_notification_calendar": "0",
            "notify_notification_calendar_event": "1",
            "notify_notification_calendar_todo": "1",
            "notify_notification_comments": "1",
            "notify_notification_contacts": "0",
            "notify_notification_deck": "1",
            "notify_notification_deck_card_description": "1",
            "notify_notification_deck_comment": "1",
            "notify_notification_favorite": "0",
            "notify_notification_file_changed": "1",
            "notify_notification_file_downloaded": "1",
            "notify_notification_file_favorite_changed": "0",
            "notify_notification_group_settings": "1",
            "notify_notification_personal_settings": "1",
            "notify_notification_public_links": "1",
            "notify_notification_remote_share": "1",
            "notify_notification_security": "1",
            "notify_notification_shared": "1",
            "notify_notification_spreed": "0",
            "notify_notification_systemtags": "1",
            "notify_notification_twofactor_totp": "1",
            "notify_notification_twofactor_webauthn": "1",
            "notify_notification_virus_detected": "1",
            "notify_setting_batchtime": "0",
            "notify_setting_self": "0",
            "notify_setting_selfemail": "0",
            "types": "filesystem"
        },
        "admin_audit": {
            "enabled": "yes",
            "installed_version": "1.18.0",
            "types": "logging"
        },
        "analytics": {
            "enabled": "[\"admin\"]",
            "installed_version": "4.12.0",
            "types": ""
        },
        "announcementcenter": {
            "enabled": "yes",
            "installed_version": "6.7.0",
            "types": "logging"
        },
        "approval": {
            "docusign_client_secret": "",
            "enabled": "yes",
            "installed_version": "1.2.0",
            "types": "filesystem,dav"
        },
        "backgroundjob": {
            "lastjob": "12501"
        },
        "bruteForce": {
            "whitelist_1": "82.68.59.192\/29",
            "whitelist_2": "192.168.100.0\/24",
            "whitelist_3": "192.168.101.0\/24"
        },
        "bruteforcesettings": {
            "enabled": "yes",
            "installed_version": "2.8.0",
            "types": ""
        },
        "calendar": {
            "enabled": "no",
            "installed_version": "3.3.2",
            "types": ""
        },
        "circles": {
            "enabled": "yes",
            "installed_version": "28.0.0-dev",
            "loopback_tmp_scheme": "https",
            "maintenance_run": "0",
            "maintenance_update": "{\"maximum\":4,\"3\":1709508311,\"2\":1709510989,\"1\":1709510989,\"4\":1659837754,\"5\":1659754945}",
            "migration_22": "1",
            "migration_22_1": "1",
            "migration_run": "0",
            "types": "filesystem,dav"
        },
        "cloud_federation_api": {
            "enabled": "yes",
            "installed_version": "1.11.0",
            "types": "filesystem"
        },
        "cloud_py_api": {
            "enabled": "yes",
            "installed_version": "0.1.9",
            "types": ""
        },
        "collectives": {
            "enabled": "yes",
            "installed_version": "2.9.2",
            "types": "filesystem"
        },
        "comments": {
            "enabled": "yes",
            "installed_version": "1.18.0",
            "types": "logging"
        },
        "contacts": {
            "enabled": "no",
            "installed_version": "4.1.1",
            "types": "dav"
        },
        "contactsinteraction": {
            "enabled": "yes",
            "installed_version": "1.9.0",
            "types": "dav"
        },
        "core": {
            "backgroundjobs_mode": "cron",
            "emailTestSuccessful": "1",
            "files_metadata": "{\"photos-original_date_time\":{\"value\":null,\"type\":\"int\",\"indexed\":true,\"editPermission\":0},\"photos-exif\":{\"value\":null,\"type\":\"array\"
,\"indexed\":false,\"editPermission\":0},\"photos-ifd0\":{\"value\":null,\"type\":\"array\",\"indexed\":false,\"editPermission\":0},\"photos-size\":{\"value\":null,\"type\":\"array\",\
"indexed\":false,\"editPermission\":0},\"photos-gps\":{\"value\":null,\"type\":\"array\",\"indexed\":false,\"editPermission\":0},\"photos-place\":{\"value\":null,\"type\":\"string\",\"
indexed\":true,\"editPermission\":0}}",
            "files_metadata_installed": "1",
            "installed.bundles": "[\"CoreBundle\"]",
            "installedat": "1621749631.7888",
            "lastcron": "1709510989",
            "lastupdateResult": "[]",
            "lastupdatedat": "1709508307",
            "moveavatarsdone": "yes",
            "oc.integritycheck.checker": "[]",
            "previewsCleanedUp": "1",
            "public_files": "files_sharing\/public.php",
            "public_webdav": "dav\/appinfo\/v1\/publicwebdav.php",
            "shareapi_allow_resharing": "no",
            "shareapi_default_expire_date": "yes",
            "shareapi_default_internal_expire_date": "yes",
            "shareapi_default_permission_candelete": "no",
            "shareapi_default_permission_canshare": "no",
            "shareapi_default_permissions": "7",
            "shareapi_default_remote_expire_date": "yes",
            "shareapi_enable_link_password_by_default": "no",
            "shareapi_enforce_expire_date": "yes",
            "shareapi_enforce_internal_expire_date": "yes",
            "shareapi_enforce_links_password": "no",
            "shareapi_enforce_remote_expire_date": "yes",
            "shareapi_exclude_groups": "no",
            "shareapi_expire_after_n_days": "180",
            "shareapi_internal_expire_after_n_days": "180",
            "shareapi_only_share_with_group_members": "yes",
            "shareapi_public_link_disclaimertext": "This link is for uploads only, ensure you have a backup, files may be deleted after use.",
            "shareapi_restrict_user_enumeration_to_group": "yes",
            "shareapi_restrict_user_enumeration_to_phone": "yes",
            "theming.variables": "50a88158082af00a486dce7298016596",
            "updater.secret.created": "1709396652",
            "vendor": "nextcloud"
        },
        "dashboard": {
            "enabled": "yes",
            "installed_version": "7.8.0",
            "types": ""
        },
        "dav": {
            "buildCalendarReminderIndex": "yes",
            "buildCalendarSearchIndex": "yes",
            "builtSocialSearchIndex": "yes",
            "chunks_migrated": "1",
            "enabled": "yes",
            "generateBirthdayCalendar": "no",
            "installed_version": "1.29.1",
            "needs_system_address_book_sync": "no",
            "regeneratedBirthdayCalendarsForYearFix": "yes",
            "sendEventRemindersPush": "yes",
            "types": "filesystem"
        },
        "deck": {
            "enabled": "yes",
            "installed_version": "1.12.2",
            "types": "dav"
        },
        "duplicatefinder": {
            "enabled": "no",
            "installed_version": "0.0.14",
            "types": ""
        },
        "epubreader": {
            "enabled": "no",
            "installed_version": "1.4.7",
            "types": ""
        },
        "external": {
            "enabled": "yes",
            "installed_version": "5.3.1",
            "jwt_token_privkey_es256": "-----BEGIN EC PRIVATE KEY-----********==\n-----END EC PRIVATE KEY-----\n",
            "jwt_token_pubkey_es256": "-----BEGIN PUBLIC KEY-----**********==\n-----END PUBLIC KEY-----\n",
            "max_site": "1",
            "sites": "***REMOVED SENSITIVE VALUE***",
            "types": ""
        },
        "facerecognition": {
            "analysis_image_area": "819600",
            "assigned_memory": "4294967296",
            "enabled": "no",
            "handle_group_files": "true",
            "handle_shared_files": "true",
            "installed_version": "0.9.31",
            "model": "4",
            "types": "filesystem"
        },
        "federatedfilesharing": {
            "enabled": "yes",
            "installed_version": "1.18.0",
            "types": ""
        },
        "federation": {
            "enabled": "no",
            "installed_version": "1.11.0",
            "types": "authentication"
        },
        "files": {
            "default_quota": "5 GB",
            "enabled": "yes",
            "installed_version": "2.0.0",
            "max_chunk_size": "104857600",
            "types": "filesystem"
        },
        "files_accesscontrol": {
            "enabled": "yes",
            "installed_version": "1.18.0",
            "types": "filesystem"
        },
        "files_antivirus": {
            "av_cmd_options": "",
            "av_host": "",
            "av_icap_mode": "reqmod",
            "av_icap_request_service": "avscan",
            "av_icap_response_header": "X-Infection-Found",
            "av_icap_tls": "0",
            "av_infected_action": "delete",
            "av_max_file_size": "256000000",
            "av_mode": "socket",
            "av_path": "\/usr\/bin\/clamscan",
            "av_port": "0",
            "av_scan_first_bytes": "-1",
            "av_socket": "\/var\/run\/clamav\/clamd.ctl",
            "av_stream_max_length": "26214400",
            "enabled": "yes",
            "installed_version": "5.4.2",
            "types": "filesystem,dav"
        },
        "files_automatedtagging": {
            "enabled": "yes",
            "installed_version": "1.18.0",
            "types": "filesystem"
        },
        "files_downloadactivity": {
            "enabled": "no",
            "installed_version": "1.16.0",
            "types": "filesystem"
        },
        "files_pdfviewer": {
            "enabled": "yes",
            "installed_version": "2.9.0",
            "types": ""
        },
        "files_reminders": {
            "enabled": "yes",
            "installed_version": "1.1.0",
            "types": ""
        },
        "files_retention": {
            "enabled": "yes",
            "installed_version": "1.17.1",
            "notify_before": "yes",
            "types": ""
        },
        "files_rightclick": {
            "enabled": "no",
            "installed_version": "1.6.0",
            "types": ""
        },
        "files_sharing": {
            "enabled": "yes",
            "incoming_server2server_share_enabled": "no",
            "installed_version": "1.20.0",
            "lookupServerUploadEnabled": "no",
            "outgoing_server2server_share_enabled": "no",
            "types": "filesystem"
        },
        "files_trashbin": {
            "enabled": "yes",
            "installed_version": "1.18.0",
            "types": "filesystem,dav"
        },
        "files_versions": {
            "enabled": "yes",
            "installed_version": "1.21.0",
            "types": "filesystem,dav"
        },
        "firstrunwizard": {
            "enabled": "yes",
            "installed_version": "2.17.0",
            "types": "logging"
        },
        "flow_notifications": {
            "enabled": "no",
            "installed_version": "1.8.0",
            "types": ""
        },
        "flowupload": {
            "enabled": "no",
            "installed_version": "1.1.3",
            "types": ""
        },
        "geoblocker": {
            "blockIpAddress": "1",
            "blockIpAddressBefore": "1",
            "choosenCountries": "AA, IR, RU, UA, ",
            "choosenWhiteBlackList": "0",
            "chosenService": "2",
            "delayIpAddress": "1",
            "enabled": "yes",
            "installed_version": "0.5.13",
            "logWithCountryCode": "1",
            "logWithIpAddress": "1",
            "logWithUserName": "1",
            "rir_data_db_date": "2023-10-03",
            "rir_data_db_version": "0",
            "rir_data_service_status": "3",
            "types": ""
        },
        "groupfolders": {
            "enabled": "yes",
            "installed_version": "16.0.4",
            "types": "filesystem,dav"
        },
        "guests": {
            "allow_external_storage": "false",
            "enabled": "no",
            "hide_users": "true",
            "installed_version": "2.2.0",
            "types": "authentication",
            "usewhitelist": "true",
            "whitelist": "files_trashbin,files_versions,files_sharing,files_texteditor,text,activity,firstrunwizard,photos,notifications,dashboard,user_status"
        },
        "logreader": {
            "enabled": "yes",
            "installed_version": "2.13.0",
            "levels": "01111",
            "shownLevels": "[1,2,3,4]",
            "types": "logging"
        },
        "lookup_server_connector": {
            "enabled": "yes",
            "installed_version": "1.16.0",
            "types": "authentication"
        },
        "mail": {
            "enabled": "[\"admin\"]",
            "installed_version": "3.5.7",
            "types": ""
        },
        "mediadc": {
            "enabled": "yes",
            "installed_version": "0.3.8",
            "types": ""
        },
        "metadata": {
            "enabled": "no",
            "installed_version": "0.19.0",
            "types": ""
        },
        "nextcloud_announcements": {
            "enabled": "yes",
            "installed_version": "1.17.0",
            "pub_date": "Thu, 24 Oct 2019 00:00:00 +0200",
            "types": "logging"
        },
        "notifications": {
            "enabled": "yes",
            "installed_version": "2.16.0",
            "setting_batchtime": "0",
            "sound_notification": "yes",
            "sound_talk": "yes",
            "types": "logging"
        },
        "oauth2": {
            "enabled": "yes",
            "installed_version": "1.16.3",
            "types": "authentication"
        },
        "password_policy": {
            "enabled": "yes",
            "enforceHaveIBeenPwned": "1",
            "enforceNumericCharacters": "1",
            "enforceSpecialCharacters": "1",
            "enforceUpperLowerCase": "1",
            "expiration": "365",
            "historySize": "3",
            "installed_version": "1.18.0",
            "maximumLoginAttempts": "3",
            "types": "authentication"
        },
        "photos": {
            "enabled": "yes",
            "installed_version": "2.4.0",
            "lastPlaceMappedUser": "Toyin Awe",
            "lastPlaceMappingDone": "true",
            "types": "dav,authentication"
        },
        "privacy": {
            "enabled": "yes",
            "installed_version": "1.12.0",
            "readableLocation": "gb",
            "types": ""
        },
        "provisioning_api": {
            "enabled": "yes",
            "installed_version": "1.18.0",
            "types": "prevent_group_restriction"
        },
        "quota_warning": {
            "alert_email": "yes",
            "enabled": "yes",
            "info_email": "no",
            "installed_version": "1.18.0",
            "types": "filesystem",
            "warning_email": "yes"
        },
        "recognize": {
            "audio.status": "false",
            "clusterFaces.lastRun": "1709318522",
            "clusterFaces.status": "true",
            "concurrency.enabled": "false",
            "enabled": "yes",
            "faces.batchSize": "500",
            "faces.enabled": "true",
            "faces.lastFile": "1709317542",
            "faces.status": "true",
            "geo.enabled": "true",
            "imagenet.batchSize": "100",
            "imagenet.enabled": "true",
            "imagenet.lastFile": "1709406818",
            "imagenet.status": "true",
            "images.status": "true",
            "installed_version": "6.1.1",
            "landmarks.batchSize": "100",
            "landmarks.enabled": "true",
            "landmarks.lastFile": "1709317631",
            "landmarks.status": "true",
            "movinet.batchSize": "20",
            "movinet.enabled": "true",
            "movinet.lastFile": "1709446474",
            "movinet.status": "true",
            "musicnn.batchSize": "100",
            "musicnn.enabled": "false",
            "nice_binary": "\/usr\/bin\/nice",
            "nice_value": "0",
            "node_binary": "\/var\/www\/nextcloud\/apps\/recognize\/bin\/node",
            "tensorflow.cores": "6",
            "tensorflow.gpu": "false",
            "tensorflow.purejs": "false",
            "types": "filesystem,dav",
            "video.status": "false"
        },
        "recommendations": {
            "enabled": "yes",
            "installed_version": "2.0.0",
            "types": ""
        },
        "registration": {
            "admin_approval_required": "yes",
            "allowed_domains": "domain.org.uk domain.uk",
            "disable_email_verification": "no",
            "domains_is_blocklist": "yes",
            "email_is_login": "no",
            "email_is_optional": "no",
            "enabled": "no",
            "enforce_fullname": "yes",
            "enforce_phone": "no",
            "installed_version": "2.3.0",
            "registered_user_group": "Volunteers",
            "show_domains": "yes",
            "show_fullname": "yes",
            "show_phone": "no",
            "types": "prevent_group_restriction"
        },
        "related_resources": {
            "enabled": "yes",
            "installed_version": "1.3.0",
            "types": ""
        },
        "richdocuments": {
            "disable_certificate_verification": "",
            "doc_format": "ooxml",
            "enabled": "yes",
            "installed_version": "8.3.1",
            "public_wopi_url": "https:\/\/domain.uk",
            "types": "prevent_group_restriction",
            "wopi_url": "https:\/\/domain.uk\/apps\/richdocumentscode\/proxy.php?req="
        },
        "richdocumentscode": {
            "enabled": "yes",
            "installed_version": "23.5.705",
            "types": ""
        },
        "serverinfo": {
            "cached_count_filecache": "66615",
            "cached_count_storages": "35",
            "enabled": "yes",
            "installed_version": "1.18.0",
            "types": ""
        },
        "settings": {
            "enabled": "yes",
            "installed_version": "1.10.1",
            "types": ""
        },
        "sharebymail": {
            "enabled": "no",
            "enforcePasswordProtection": "yes",
            "installed_version": "1.18.0",
            "types": "filesystem"
        },
        "sharelisting": {
            "enabled": "no",
            "installed_version": "1.2.0",
            "types": ""
        },
        "sociallogin": {
            "allow_login_connect": "",
            "auto_create_groups": "1",
            "button_text_wo_prefix": "",
            "create_disabled_users": "",
            "custom_providers": "{\"custom_oidc\":[{\"name\":\"G.Suite_COID\",\"title\":\"Google Suite Account\",\"authorizeUrl\":\"https:\\\/\\\/accounts.google.com\\\/o\\\/oa
uth2\\\/v2\\\/auth\",\"tokenUrl\":\"https:\\\/\\\/www.googleapis.com\\\/oauth2\\\/v4\\\/token\",\"displayNameClaim\":\"\",\"userInfoUrl\":\"https:\\\/\\\/www.googleapis.com\\\/oauth2\\
\/v3\\\/userinfo\",\"logoutUrl\":\"https:\\\/\\\/domain.uk\\\/\",\"clientId\":\"627399176664-irkibqdl1oaa8hdja9ie9vo0b3f35fk1.apps.googleusercontent.com\",\"clientSecret\":\"3fftREc
kki4J22ob8WYGwfwb\",\"scope\":\"https:\\\/\\\/www.googleapis.com\\\/auth\\\/userinfo.profile https:\\\/\\\/www.googleapis.com\\\/auth\\\/userinfo.email\",\"groupsClaim\":\"(\\\"roles\\
\": \\\"Staff\\\")\",\"style\":\"openid\",\"defaultGroup\":\"Volunteers\",\"groupMapping\":{\"Affinity Team\":\"Affinity\",\"Media Team\":\"Media\"}}]}",
            "disable_notify_admins": "",
            "disable_registration": "",
            "enabled": "yes",
            "hide_default_login": "",
            "installed_version": "5.6.3",
            "no_prune_user_groups": "1",
            "oauth_providers": "null",
            "prevent_create_email_exists": "1",
            "restrict_users_wo_assigned_groups": "",
            "restrict_users_wo_mapped_groups": "",
            "types": "",
            "update_profile_on_login": "1"
        },
        "socialsharing_email": {
            "enabled": "no",
            "installed_version": "3.1.0",
            "types": ""
        },
        "spreed": {
            "allowed_groups": "[]",
            "enable_matterbridge": "1",
            "enabled": "yes",
            "has_reference_id": "yes",
            "installed_version": "18.0.4",
            "matterbridge_binary": "\/var\/www\/nextcloud\/apps\/talk_matterbridge\/bin\/matterbridge-1.25.2-linux-64bit",
            "project_access_invalidated": "1",
            "signaling_ticket_secret": "***REMOVED SENSITIVE VALUE***",
            "signaling_token_privkey_es256": "***REMOVED SENSITIVE VALUE***",
            "signaling_token_pubkey_es256": "***REMOVED SENSITIVE VALUE***",
            "sip_bridge_dialin_info": "***REMOVED SENSITIVE VALUE***",
            "sip_bridge_groups": "[]",
            "sip_bridge_shared_secret": "***REMOVED SENSITIVE VALUE***",
            "start_conversations": "[]",
            "stun_servers": "***REMOVED SENSITIVE VALUE***",
            "turn_servers": "***REMOVED SENSITIVE VALUE***",
            "types": "dav,prevent_group_restriction"
        },
        "support": {
            "enabled": "no",
            "installed_version": "1.4.0",
            "types": "session"
        },
        "survey_client": {
            "enabled": "yes",
            "installed_version": "1.16.0",
            "last_report": "{\"id\":\"ocppxp7xz6v0\",\"items\":[[\"server\",\"version\",\"27.1.5.1\"],[\"server\",\"code\",\"other\"],[\"server\",\"enable_avatars\",\"yes\"],[\"server\
",\"enable_previews\",\"yes\"],[\"server\",\"memcache.local\",\"\\\\OC\\\\Memcache\\\\APCu\"],[\"server\",\"memcache.distributed\",\"none\"],[\"server\",\"asset-pipeline.enabled\",\"no
\"],[\"server\",\"filelocking.enabled\",\"yes\"],[\"server\",\"memcache.locking\",\"\\\\OC\\\\Memcache\\\\Redis\"],[\"server\",\"debug\",\"no\"],[\"server\",\"cron\",\"cron\"],[\"php\"
,\"version\",\"8.2.13\"],[\"php\",\"memory_limit\",-1],[\"php\",\"max_execution_time\",0],[\"php\",\"upload_max_filesize\",2097152],[\"database\",\"type\",\"mysql\"],[\"database\",\"ve
rsion\",\"10.3.38\"],[\"database\",\"size\",178864128],[\"apps\",\"activity\",\"2.19.0\"],[\"apps\",\"admin_audit\",\"1.17.0\"],[\"apps\",\"analytics\",\"4.12.0\"],[\"apps\",\"announce
mentcenter\",\"6.7.0\"],[\"apps\",\"approval\",\"1.1.1\"],[\"apps\",\"bruteforcesettings\",\"2.7.0\"],[\"apps\",\"calendar\",\"disabled\"],[\"apps\",\"circles\",\"27.0.1\"],[\"apps\",\
"cloud_federation_api\",\"1.10.0\"],[\"apps\",\"collectives\",\"2.9.2\"],[\"apps\",\"comments\",\"1.17.0\"],[\"apps\",\"contacts\",\"disabled\"],[\"apps\",\"contactsinteraction\",\"1.8
.0\"],[\"apps\",\"dashboard\",\"7.7.0\"],[\"apps\",\"dav\",\"1.27.0\"],[\"apps\",\"deck\",\"1.11.2\"],[\"apps\",\"duplicatefinder\",\"disabled\"],[\"apps\",\"epubreader\",\"disabled\"]
,[\"apps\",\"external\",\"5.2.1\"],[\"apps\",\"facerecognition\",\"disabled\"],[\"apps\",\"federatedfilesharing\",\"1.17.0\"],[\"apps\",\"federation\",\"disabled\"],[\"apps\",\"files\"
,\"1.22.0\"],[\"apps\",\"files_accesscontrol\",\"1.17.1\"],[\"apps\",\"files_antivirus\",\"5.4.0\"],[\"apps\",\"files_automatedtagging\",\"1.17.0\"],[\"apps\",\"files_downloadactivity\
",\"disabled\"],[\"apps\",\"files_pdfviewer\",\"2.8.0\"],[\"apps\",\"files_reminders\",\"1.0.0\"],[\"apps\",\"files_retention\",\"1.16.0\"],[\"apps\",\"files_rightclick\",\"1.6.0\"],[\
"apps\",\"files_sharing\",\"1.19.0\"],[\"apps\",\"files_trashbin\",\"1.17.0\"],[\"apps\",\"files_versions\",\"1.20.0\"],[\"apps\",\"firstrunwizard\",\"2.16.0\"],[\"apps\",\"flow_notifi
cations\",\"disabled\"],[\"apps\",\"flowupload\",\"disabled\"],[\"apps\",\"geoblocker\",\"0.5.13\"],[\"apps\",\"groupfolders\",\"15.3.2\"],[\"apps\",\"guests\",\"disabled\"],[\"apps\",
\"logreader\",\"2.12.0\"],[\"apps\",\"lookup_server_connector\",\"1.15.0\"],[\"apps\",\"mail\",\"3.5.0\"],[\"apps\",\"mediadc\",\"0.3.7\"],[\"apps\",\"metadata\",\"0.19.0\"],[\"apps\",
\"nextcloud_announcements\",\"1.16.0\"],[\"apps\",\"notifications\",\"2.15.0\"],[\"apps\",\"oauth2\",\"1.15.1\"],[\"apps\",\"password_policy\",\"1.17.0\"],[\"apps\",\"photos\",\"2.3.0\
"],[\"apps\",\"privacy\",\"1.11.0\"],[\"apps\",\"provisioning_api\",\"1.17.0\"],[\"apps\",\"quota_warning\",\"1.18.0\"],[\"apps\",\"recognize\",\"5.0.3\"],[\"apps\",\"recommendations\"
,\"1.6.0\"],[\"apps\",\"registration\",\"2.2.0\"],[\"apps\",\"related_resources\",\"1.2.0\"],[\"apps\",\"richdocuments\",\"8.2.3\"],[\"apps\",\"richdocumentscode\",\"23.5.604\"],[\"app
s\",\"serverinfo\",\"1.17.0\"],[\"apps\",\"settings\",\"1.9.0\"],[\"apps\",\"sharebymail\",\"1.17.0\"],[\"apps\",\"sharelisting\",\"disabled\"],[\"apps\",\"sociallogin\",\"5.6.2\"],[\"
apps\",\"socialsharing_email\",\"disabled\"],[\"apps\",\"spreed\",\"17.1.4\"],[\"apps\",\"support\",\"disabled\"],[\"apps\",\"survey_client\",\"1.15.0\"],[\"apps\",\"suspicious_login\"
,\"5.0.0\"],[\"apps\",\"systemtags\",\"1.17.0\"],[\"apps\",\"talk_matterbridge\",\"disabled\"],[\"apps\",\"tasks\",\"0.15.0\"],[\"apps\",\"terms_of_service\",\"disabled\"],[\"apps\",\"
text\",\"3.8.0\"],[\"apps\",\"theming\",\"2.2.0\"],[\"apps\",\"theming_customcss\",\"1.15.0\"],[\"apps\",\"twofactor_backupcodes\",\"1.16.0\"],[\"apps\",\"twofactor_nextcloud_notificat
ion\",\"3.8.0\"],[\"apps\",\"twofactor_totp\",\"9.0.0\"],[\"apps\",\"twofactor_u2f\",\"disabled\"],[\"apps\",\"twofactor_webauthn\",\"1.3.2\"],[\"apps\",\"updatenotification\",\"1.17.0
\"],[\"apps\",\"user_saml\",\"disabled\"],[\"apps\",\"user_status\",\"1.7.0\"],[\"apps\",\"video_converter\",\"1.0.6\"],[\"apps\",\"viewer\",\"2.1.0\"],[\"apps\",\"weather_status\",\"d
isabled\"],[\"apps\",\"workflow_media_converter\",\"disabled\"],[\"apps\",\"workflow_pdf_converter\",\"disabled\"],[\"apps\",\"workflow_script\",\"1.12.1\"],[\"apps\",\"workflowengine\
",\"2.9.0\"],[\"stats\",\"num_files\",57800],[\"stats\",\"num_users\",23],[\"stats\",\"num_storages\",34],[\"stats\",\"num_storages_local\",1],[\"stats\",\"num_storages_home\",33],[\"s
tats\",\"num_storages_other\",0],[\"stats\",\"num_comments\",1630],[\"stats\",\"num_comment_markers\",4],[\"stats\",\"num_systemtags\",217],[\"stats\",\"num_systemtags_mappings\",14586
],[\"files_sharing\",\"num_shares\",60],[\"files_sharing\",\"num_shares_user\",1],[\"files_sharing\",\"num_shares_groups\",9],[\"files_sharing\",\"num_shares_link\",14],[\"files_sharin
g\",\"num_shares_link_no_password\",14],[\"files_sharing\",\"num_fed_shares_sent\",0],[\"files_sharing\",\"num_fed_shares_received\",0],[\"files_sharing\",\"permissions_3_1\",8],[\"fil
es_sharing\",\"permissions_3_3\",1],[\"files_sharing\",\"permissions_3_4\",1],[\"files_sharing\",\"permissions_0_7\",1],[\"files_sharing\",\"permissions_1_7\",2],[\"files_sharing\",\"p
ermissions_2_7\",5],[\"files_sharing\",\"permissions_1_15\",7],[\"files_sharing\",\"permissions_2_15\",31],[\"files_sharing\",\"permissions_3_15\",4],[\"encryption\",\"enabled\",\"no\"
],[\"encryption\",\"default_module\",\"no\"]]}",
            "last_sent": "1704802279",
            "types": ""
        },
        "suspicious_login": {
            "enabled": "no",
            "installed_version": "6.0.0",
            "types": "authentication"
        },
        "systemtags": {
            "enabled": "yes",
            "installed_version": "1.18.0",
            "types": "logging"
        },
        "talk_matterbridge": {
            "enabled": "no",
            "installed_version": "1.26.0",
            "types": "prevent_group_restriction"
        },
        "tasks": {
            "enabled": "yes",
            "installed_version": "0.15.0",
            "types": ""
        },
        "terms_of_service": {
            "enabled": "no",
            "installed_version": "2.4.0",
            "types": "filesystem,dav"
        },
        "text": {
            "enabled": "yes",
            "installed_version": "3.9.1",
            "types": "dav"
        },
        "theming": {
            "backgroundMime": "backgroundColor",
            "cachebuster": "41",
            "color": "#223F82",
            "enabled": "yes",
            "faviconMime": "image\/jpeg",
            "installed_version": "2.3.0",
            "logoMime": "image\/jpeg",
            "logoheaderMime": "image\/jpeg",
            "name": "Team @ Be.CC",
            "slogan": "***REMOVED SENSITIVE VALUE***",
            "types": "logging",
            "url": "***REMOVED SENSITIVE VALUE***"
        },
        "theming_customcss": {
            "cachebuster": "1691704817469",
            "customcss": "\/*.grouptop input#user:invalid {\n *  border: solid red;\n *  border-bottom: 4px solid red !important;\n *\/}\n",
            "enabled": "yes",
            "installed_version": "1.15.0",
            "types": ""
        },
        "twofactor_backupcodes": {
            "enabled": "yes",
            "installed_version": "1.17.0",
            "types": ""
        },
        "twofactor_nextcloud_notification": {
            "enabled": "yes",
            "installed_version": "3.8.0",
            "types": ""
        },
        "twofactor_totp": {
            "enabled": "yes",
            "installed_version": "10.0.0-beta.2",
            "types": ""
        },
        "twofactor_u2f": {
            "enabled": "no",
            "installed_version": "6.3.1",
            "types": ""
        },
        "twofactor_webauthn": {
            "enabled": "yes",
            "installed_version": "1.3.2",
            "types": ""
        },
        "updatenotification": {
            "analytics": "4.12.0",
            "announcementcenter": "6.7.0",
            "approval": "1.1.1",
            "bruteforcesettings": "2.4.0",
            "collectives": "2.9.2",
            "core": "28.0.3.2",
            "deck": "1.11.4",
            "enabled": "yes",
            "external": "4.0.1",
            "facerecognition": "0.9.1",
            "files_accesscontrol": "1.16.2",
            "files_antivirus": "5.4.2",
            "files_automatedtagging": "1.14.1",
            "files_retention": "1.17.1",
            "geoblocker": "0.5.13",
            "groupfolders": "16.0.4",
            "guests": "2.2.0",
            "installed_version": "1.18.0",
            "mail": "3.5.7",
            "mediadc": "0.1.10",
            "metadata": "0.19.0",
            "notify_groups": "[\"admin\",\"IT\"]",
            "quota_warning": "1.18.0",
            "recognize": "6.1.1",
            "registration": "1.5.0",
            "richdocuments": "8.2.4",
            "richdocumentscode": "23.5.702",
            "sociallogin": "5.6.3",
            "spreed": "18.0.4",
            "talk_matterbridge": "1.25.2",
            "tasks": "0.14.5",
            "terms_of_service": "1.10.3",
            "theming_customcss": "1.15.0",
            "twofactor_nextcloud_notification": "3.8.0",
            "twofactor_totp": "6.4.1",
            "twofactor_webauthn": "1.3.2",
            "types": "",
            "update_check_errors": "0",
            "video_converter": "1.0.6",
            "workflow_media_converter": "1.7.0",
            "workflow_script": "1.12.1"
        },
        "user_saml": {
            "enabled": "no",
            "general-allow_multiple_user_back_ends": "0",
            "general-idp0_display_name": "G-Suite",
            "general-require_provisioned_account": "0",
            "general-uid_mapping": "mail",
            "general-use_saml_auth_for_desktop": "0",
            "idp-entityId": "https:\/\/accounts.google.com\/o\/saml2\/idp?idpid=IDHERE",
            "installed_version": "4.1.1",
            "type": "",
            "types": "authentication"
        },
        "user_status": {
            "enabled": "yes",
            "installed_version": "1.8.1",
            "types": ""
        },
        "video_converter": {
            "enabled": "no",
            "installed_version": "1.0.6",
            "types": ""
        },
        "viewer": {
            "enabled": "yes",
            "installed_version": "2.2.0",
            "types": ""
        },
        "weather_status": {
            "enabled": "no",
            "installed_version": "1.3.0",
            "types": ""
        },
        "workflow_media_converter": {
            "enabled": "yes",
            "installed_version": "1.9.3",
            "threadLimit": "4",
            "types": ""
        },
        "workflow_pdf_converter": {
            "enabled": "no",
            "installed_version": "1.13.0",
            "types": "filesystem"
        },
        "workflow_script": {
            "enabled": "yes",
            "installed_version": "1.13.0",
            "types": "filesystem"
        },
        "workflowengine": {
            "enabled": "yes",
            "installed_version": "2.10.0",
            "types": "filesystem"
        }
    }
}

The output of your Apache/nginx/system log in /var/log/____:

192.168.100.114 - - [04/Mar/2024:00:01:27 +0000] "GET /status.php HTTP/1.1" 200 5508 "-" "Mozilla/5.0 (iOS) Nextcloud-iOS/5.1.0"
192.168.100.114 - - [04/Mar/2024:00:01:27 +0000] "POST /index.php/login/v2 HTTP/1.1" 200 1209 "-" "Nextcloud/5.1.0 (it.twsweb.Nextcloud; build:7; iOS 17.3.1) Alamofire/5.8.0"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /index.php/login/flow HTTP/1.1" 200 13868 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /core/css/login/authpicker.css?v=cabf7814-41 HTTP/1.1" 200 4681 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /core/css/server.css?v=cabf7814-41 HTTP/1.1" 200 22273 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/announcementcenter/css/announcementcenter-global.css?v=22df91a9-41 HTTP/1.1" 200 4586 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /core/css/guest.css?v=cabf7814-41 HTTP/1.1" 200 5232 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/theming/manifest?v=e0e9a308 HTTP/1.1" 200 1144 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/sociallogin/css/styles.css?v=23ca7688-41 HTTP/1.1" 200 5303 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/collectives/l10n/en_GB.js?v=cabf7814-41 HTTP/1.1" 200 4019 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /dist/core-files_fileinfo.js?v=cabf7814-41 HTTP/1.1" 200 1196 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /dist/core-files_client.js?v=cabf7814-41 HTTP/1.1" 200 4956 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /core/js/oc.js?v=cabf7814 HTTP/1.1" 200 2655 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/collectives/js/collectives-init.js?v=cabf7814-41 HTTP/1.1" 200 107454 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /core/l10n/en_GB.js?v=cabf7814-41 HTTP/1.1" 200 12733 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /core/js/login/authpicker.js?v=cabf7814-41 HTTP/1.1" 200 937 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/collectives/js/collectives-files.js?v=cabf7814-41 HTTP/1.1" 200 38543 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /js/core/merged-template-prepend.js?v=cabf7814-41 HTTP/1.1" 200 4154 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/deck/l10n/en_GB.js?v=cabf7814-41 HTTP/1.1" 200 5626 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/files/l10n/en_GB.js?v=cabf7814-41 HTTP/1.1" 200 5766 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /dist/files-reference-files.js?v=cabf7814-41 HTTP/1.1" 200 5027 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/collectives/js/collectives-reference.js?v=cabf7814-41 HTTP/1.1" 200 358282 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/analytics/js/reference.js?v=cabf7814-41 HTTP/1.1" 200 1273 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /dist/core-main.js?v=cabf7814-41 HTTP/1.1" 200 280328 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/analytics/l10n/en_GB.js?v=cabf7814-41 HTTP/1.1" 200 6455 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/richdocuments/l10n/en_GB.js?v=cabf7814-41 HTTP/1.1" 200 5989 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/text/l10n/en_GB.js?v=cabf7814-41 HTTP/1.1" 200 3535 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/text/js/text-editors.js?v=cabf7814-41 HTTP/1.1" 200 82219 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/theming/l10n/en_GB.js?v=cabf7814-41 HTTP/1.1" 200 3252 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/theming/js/theming.js?v=cabf7814-41 HTTP/1.1" 200 678 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /dist/files_sharing-main.js?v=cabf7814-41 HTTP/1.1" 200 973 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/files_sharing/l10n/en_GB.js?v=cabf7814-41 HTTP/1.1" 200 5105 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/deck/js/deck-reference.js?v=cabf7814-41 HTTP/1.1" 200 931688 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/theming/theme/default.css?plain=1&v=761f22b2 HTTP/1.1" 200 2076 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/theming/theme/light.css?plain=1&v=761f22b2 HTTP/1.1" 200 2076 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/richdocuments/js/richdocuments-reference.js?v=cabf7814-41 HTTP/1.1" 200 783385 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/theming/theme/light.css?plain=0&v=761f22b2 HTTP/1.1" 200 2100 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/theming/theme/dark.css?plain=0&v=761f22b2 HTTP/1.1" 200 2092 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/theming/css/default.css?v=70e2b24f-41 HTTP/1.1" 200 5677 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/theming/theme/dark-highcontrast.css?plain=0&v=761f22b2 HTTP/1.1" 200 2181 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/theming/theme/light-highcontrast.css?plain=0&v=761f22b2 HTTP/1.1" 200 2145 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:29 +0000] "GET /dist/icons.css HTTP/1.1" 200 31335 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /dist/core-common.js?v=cabf7814-41 HTTP/1.1" 200 902112 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:28 +0000] "GET /apps/theming/theme/opendyslexic.css?plain=0&v=761f22b2 HTTP/1.1" 200 1285 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:29 +0000] "GET /apps/theming_customcss/styles?v=1691704817469 HTTP/1.1" 200 1049 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:29 +0000] "GET /apps/theming/theme/dark.css?plain=1&v=761f22b2 HTTP/1.1" 200 2066 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:29 +0000] "GET /apps/theming/theme/light-highcontrast.css?plain=1&v=761f22b2 HTTP/1.1" 200 2122 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:29 +0000] "GET /apps/theming/theme/dark-highcontrast.css?plain=1&v=761f22b2 HTTP/1.1" 200 2158 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:29 +0000] "GET /apps/theming/image/logo?v=41 HTTP/1.1" 404 25311 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:31 +0000] "GET /login/flow/grant?clientIdentifier=&user=&direct=0&stateToken=******** HTTP/1.1" 303 1034 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /login?redirect_url=/login/flow/grant?clientIdentifier%3D%26user%3D%26direct%3D0%26stateToken******** HTTP/1.1" 200 8626 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /dist/core-login.js?v=cabf7814-41 HTTP/1.1" 200 47649 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/theme/light.css?plain=1&v=761f22b2 HTTP/1.1" 200 2076 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /core/js/oc.js?v=cabf7814 HTTP/1.1" 200 2656 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/theme/light.css?plain=0&v=761f22b2 HTTP/1.1" 200 2100 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/theme/default.css?plain=1&v=761f22b2 HTTP/1.1" 200 2076 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/manifest?v=e0e9a308 HTTP/1.1" 200 1144 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/theme/dark.css?plain=0&v=761f22b2 HTTP/1.1" 200 2092 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/theme/dark-highcontrast.css?plain=0&v=761f22b2 HTTP/1.1" 200 2181 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/theme/opendyslexic.css?plain=0&v=761f22b2 HTTP/1.1" 200 1285 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/theme/light-highcontrast.css?plain=0&v=761f22b2 HTTP/1.1" 200 2145 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/theme/dark.css?plain=1&v=761f22b2 HTTP/1.1" 200 2066 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/theme/light-highcontrast.css?plain=1&v=761f22b2 HTTP/1.1" 200 2122 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/image/logo?v=41 HTTP/1.1" 404 25311 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/theme/dark-highcontrast.css?plain=1&v=761f22b2 HTTP/1.1" 200 2158 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /core/img/logo/logo.svg HTTP/1.1" 200 1422 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/img/background/kamil-porembinski-clouds.jpg HTTP/1.1" 200 106727 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /core/img/loading-dark.gif HTTP/1.1" 200 5288 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/sociallogin/img/button/openid.svg HTTP/1.1" 200 1333 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:32 +0000] "GET /apps/theming/image/logo?v=41 HTTP/1.1" 404 25311 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:01:35 +0000] "GET /apps/sociallogin/custom_oidc/G.Suite_COID?login_redirect_url=/login/flow/grant?clientIdentifier%3D%26user%3D%26direct%3D0%26stateToken******** HTTP/1.1" 302 1470 "-" "iPhone (Nextcloud iOS)"
192.168.100.114 - - [04/Mar/2024:00:02:37 +0000] "HEAD /remote.php/dav HTTP/1.1" 401 4487 "-" "Nextcloud/5.1.0 (it.twsweb.Nextcloud; build:7; iOS 17.3.1) Alamofire/5.8.0"
192.168.100.114 - - [04/Mar/2024:00:02:37 +0000] "HEAD /remote.php/dav HTTP/1.1" 401 4487 "-" "Nextcloud/5.1.0 (it.twsweb.Nextcloud; build:7; iOS 17.3.1) Alamofire/5.8.0"
192.168.100.114 - - [04/Mar/2024:00:02:37 +0000] "HEAD /remote.php/dav HTTP/1.1" 401 704 "-" "Nextcloud/5.1.0 (it.twsweb.Nextcloud; build:7; iOS 17.3.1) Alamofire/5.8.0"
192.168.100.114 - - [04/Mar/2024:00:02:37 +0000] "HEAD /remote.php/dav HTTP/1.1" 401 704 "-" "Nextcloud/5.1.0 (it.twsweb.Nextcloud; build:7; iOS 17.3.1) Alamofire/5.8.0"
192.168.100.114 - - [04/Mar/2024:00:02:37 +0000] "GET /ocs/v2.php/cloud/user HTTP/1.1" 401 1749 "-" "Mozilla/5.0 (iOS) Nextcloud-iOS/5.1.0"
192.168.100.114 - - [04/Mar/2024:00:02:37 +0000] "GET /ocs/v2.php/cloud/user HTTP/1.1" 401 1743 "-" "Mozilla/5.0 (iOS) Nextcloud-iOS/5.1.0"
192.168.100.114 - - [04/Mar/2024:00:02:38 +0000] "GET /ocs/v2.php/cloud/user HTTP/1.1" 401 4970 "-" "Mozilla/5.0 (iOS) Nextcloud-iOS/5.1.0"
192.168.100.114 - - [04/Mar/2024:00:02:38 +0000] "GET /ocs/v2.php/cloud/user HTTP/1.1" 401 4970 "-" "Mozilla/5.0 (iOS) Nextcloud-iOS/5.1.0"
192.168.100.114 - - [04/Mar/2024:00:06:53 +0000] "GET /ocs/v2.php/cloud/user HTTP/1.1" 401 4970 "-" "Mozilla/5.0 (iOS) Nextcloud-iOS/5.1.0"
192.168.100.114 - - [04/Mar/2024:00:06:53 +0000] "GET /ocs/v2.php/cloud/user HTTP/1.1" 401 4970 "-" "Mozilla/5.0 (iOS) Nextcloud-iOS/5.1.0"

Output errors in nextcloud.log in /var/www/ or as admin user in top right menu, filtering for errors. Use a pastebin service if necessary.

Nothing in nextcloud.log, I did change the log level from 0 to 3 today as it was logging loads of informational stuff.

Happy to provide more detail as required.