[resolved] Unable to login via a browser - internal error no login page

Hello

Thank you for your help
After add some app we can t login :

[/details]
Nextcloud version (eg, 16.0.1):
=>sudo -u www-data php occ status

  • installed: true
  • version: 16.0.1.1
  • versionstring: 16.0.1
  • edition:

Operating system and version (Debian buster (10)):
Apache or nginx version (eg, Apache 2.4.38):
Server version: Apache/2.4.38 (Debian)
Server built: 2019-04-07T18:15:40
Server’s Module Magic Number: 20120211:84
Server loaded: APR 1.6.5, APR-UTIL 1.6.1
Compiled using: APR 1.6.5, APR-UTIL 1.6.1
Architecture: 64-bit
Server MPM: prefork
threaded: no
forked: yes (variable process count)
Server compiled with…
-D APR_HAS_SENDFILE
-D APR_HAS_MMAP
-D APR_HAVE_IPV6 (IPv4-mapped addresses enabled)
-D APR_USE_SYSVSEM_SERIALIZE
-D APR_USE_PTHREAD_SERIALIZE
-D SINGLE_LISTEN_UNSERIALIZED_ACCEPT
-D APR_HAS_OTHER_CHILD
-D AP_HAVE_RELIABLE_PIPED_LOGS
-D DYNAMIC_MODULE_LIMIT=256
-D HTTPD_ROOT="/etc/apache2"
-D SUEXEC_BIN="/usr/lib/apache2/suexec"
-D DEFAULT_PIDLOG="/var/run/apache2.pid"
-D DEFAULT_SCOREBOARD=“logs/apache_runtime_status”
-D DEFAULT_ERRORLOG=“logs/error_log”
-D AP_TYPES_CONFIG_FILE=“mime.types”
-D SERVER_CONFIG_FILE=“apache2.conf”
PHP version (eg, 7.3):
=>php --version
PHP 7.3.4-2 (cli) (built: Apr 13 2019 19:05:48) ( NTS )
Copyright © 1997-2018 The PHP Group
Zend Engine v3.3.4, Copyright © 1998-2018 Zend Technologies
with Zend OPcache v7.3.4-2, Copyright © 1999-2018, by Zend Technologies

we don t have a the login page error 500 see the screenshot :


we can login with safari , but not with firefox, chrome, ie
With safari when we are logged we didn t see files , when we go to parameter we have a 500 error (similar) as login page error with firefox, chrome

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

Steps to replicate it:

  1. add via the web interfaces some app (admin_audit, admin_notifications, announcementcenter, camerarawpreviews, defaultlinkopen, dropit, files_accesscontrol, socialsharing_email, socialsharing_facebook, socialsharing_twitter, sociallogin
  2. i removed them with cli : sudo -u www-data php occ app:disable <app_name>
  3. now my list :
    =>sudo -u www-data php occ app:list
    Enabled:
  • accessibility: 1.2.0
  • activity: 2.9.1
  • apporder: 0.7.1
  • bookmarks: 1.0.5
  • calendar: 1.7.0
  • checksum: 0.4.2
  • cloud_federation_api: 0.2.0
  • comments: 1.6.0
  • contacts: 3.1.1
  • dav: 1.9.2
  • drawio: 0.9.3
  • encryption: 2.4.0
  • external: 3.3.0
  • federatedfilesharing: 1.6.0
  • federation: 1.6.0
  • files: 1.11.0
  • files_automatedtagging: 1.6.0
  • files_downloadactivity: 1.5.0
  • files_external: 1.7.0
  • files_frommail: 0.2.0
  • files_markdown: 2.0.6
  • files_pdfviewer: 1.5.0
  • files_reader: 1.2.3
  • files_rightclick: 0.13.0
  • files_sharing: 1.8.0
  • files_texteditor: 2.8.0
  • files_trackdownloads: 1.5.0
  • files_trashbin: 1.6.0
  • files_versions: 1.9.0
  • files_videoplayer: 1.5.0
  • firstrunwizard: 2.5.0
  • flowupload: 0.1.0
  • gallery: 18.3.0
  • groupfolders: 4.0.2
  • logreader: 2.1.0
  • lookup_server_connector: 1.4.0
  • metadata: 0.9.0
  • nextcloud_announcements: 1.5.0
  • notes: 2.6.0
  • oauth2: 1.4.2
  • password_policy: 1.6.0
  • privacy: 1.0.0
  • provisioning_api: 1.6.0
  • qownnotesapi: 19.4.0
  • recommendations: 0.4.0
  • serverinfo: 1.6.0
  • sharebymail: 1.6.0
  • spreed: 6.0.1
  • support: 1.0.0
  • survey_client: 1.4.0
  • systemtags: 1.6.0
  • tasks: 0.10.1
  • theming: 1.7.0
  • twofactor_backupcodes: 1.5.0
  • updatenotification: 1.6.0
  • viewer: 1.0.0
  • workflowengine: 1.6.0
    Disabled:
  • admin_audit
  • admin_notifications
  • announcementcenter
  • camerarawpreviews
  • defaultlinkopen
  • dropit
  • files_accesscontrol
  • files_inotify
  • notifications
  • ransomware_protection
  • sociallogin
  • socialsharing_email
  • socialsharing_facebook
  • socialsharing_googleplus
  • socialsharing_twitter
  • user_ldap

The output of your Nextcloud log in Admin > Logging:
the part of nextcloud log for the identifier : hnCzmzs5U6LvRDti54BP (what you can see on the screen-shot’


> {"reqId":"hnCzmzs5U6LvRDti54BP","level":3,"time":"28 May, 2019 08:12:36","remoteAddr":"2a01:e35:2fde:d441::203","user":"--","app":"index","method":"GET","url":"\/login","message":{"Exception":"Error","Message":"Class 'OCP\\Config' not found","Code":0,"Trace":[{"file":"\/var\/www\/tools\/apps\/files_reader\/lib\/Hooks.php","line":41,"function":"get","class":"OCA\\Files_Reader\\Config","type":"::","args":["epub_enable","true"]},{"file":"\/var\/www\/tools\/lib\/private\/legacy\/hook.php","line":106,"function":"announce_settings","class":"OCA\\Files_Reader\\Hooks","type":"::","args":[{"array":{"oc_debug":"false","oc_isadmin":"false","backendAllowsPasswordConfirmation":"true","oc_dataURL":"false","oc_webroot":"\"\"","oc_appswebroots":"{\"accessibility\":\"\/apps\/accessibility\",\"activity\":\"\/apps\/activity\",\"apporder\":\"\/apps\/apporder\",\"bookmarks\":\"\/apps\/bookmarks\",\"calendar\":\"\/apps\/calendar\",\"checksum\":\"\/apps\/checksum\",\"cloud_federation_api\":\"\/apps\/cloud_federation_api\",\"comments\":\"\/apps\/comments\",\"contacts\":\"\/apps\/contacts\",\"dav\":\"\/apps\/dav\",\"drawio\":\"\/apps\/drawio\",\"encryption\":\"\/apps\/encryption\",\"external\":\"\/apps\/external\",\"federatedfilesharing\":\"\/apps\/federatedfilesharing\",\"federation\":\"\/apps\/federation\",\"files\":\"\/apps\/files\",\"files_automatedtagging\":\"\/apps\/files_automatedtagging\",\"files_downloadactivity\":\"\/apps\/files_downloadactivity\",\"files_external\":\"\/apps\/files_external\",\"files_frommail\":\"\/apps\/files_frommail\",\"files_markdown\":\"\/apps\/files_markdown\",\"files_pdfviewer\":\"\/apps\/files_pdfviewer\",\"files_reader\":\"\/apps\/files_reader\",\"files_rightclick\":\"\/apps\/files_rightclick\",\"files_sharing\":\"\/apps\/files_sharing\",\"files_texteditor\":\"\/apps\/files_texteditor\",\"files_trackdownloads\":\"\/apps\/files_trackdownloads\",\"files_trashbin\":\"\/apps\/files_trashbin\",\"files_versions\":\"\/apps\/files_versions\",\"files_videoplayer\":\"\/apps\/files_videoplayer\",\"firstrunwizard\":\"\/apps\/firstrunwizard\",\"flowupload\":\"\/apps\/flowupload\",\"gallery\":\"\/apps\/gallery\",\"groupfolders\":\"\/apps\/groupfolders\",\"logreader\":\"\/apps\/logreader\",\"lookup_server_connector\":\"\/apps\/lookup_server_connector\",\"metadata\":\"\/apps\/metadata\",\"nextcloud_announcements\":\"\/apps\/nextcloud_announcements\",\"notes\":\"\/apps\/notes\",\"oauth2\":\"\/apps\/oauth2\",\"password_policy\":\"\/apps\/password_policy\",\"privacy\":\"\/apps\/privacy\",\"provisioning_api\":\"\/apps\/provisioning_api\",\"qownnotesapi\":\"\/apps\/qownnotesapi\",\"recommendations\":\"\/apps\/recommendations\",\"serverinfo\":\"\/apps\/serverinfo\",\"sharebymail\":\"\/apps\/sharebymail\",\"sociallogin\":\"\/apps\/sociallogin\",\"spreed\":\"\/apps\/spreed\",\"support\":\"\/apps\/support\",\"survey_client\":\"\/apps\/survey_client\",\"systemtags\":\"\/apps\/systemtags\",\"tasks\":\"\/apps\/tasks\",\"theming\":\"\/apps\/theming\",\"twofactor_backupcodes\":\"\/apps\/twofactor_backupcodes\",\"updatenotification\":\"\/apps\/updatenotification\",\"viewer\":\"\/apps\/viewer\",\"workflowengine\":\"\/apps\/workflowengine\"}","datepickerFormatDate":"\"dd\\\/MM\\\/y\"","nc_lastLogin":0,"nc_pageLoad":1559023956,"dayNames":"[\"Dimanche\",\"Lundi\",\"Mardi\",\"Mercredi\",\"Jeudi\",\"Vendredi\",\"Samedi\"]","dayNamesShort":"[\"Dim.\",\"Lun.\",\"Mar.\",\"Mer.\",\"Jeu.\",\"Ven.\",\"Sam.\"]","dayNamesMin":"[\"Di\",\"Lu\",\"Ma\",\"Me\",\"Je\",\"Ve\",\"Sa\"]","monthNames":"[\"Janvier\",\"F\\u00e9vrier\",\"Mars\",\"Avril\",\"Mai\",\"Juin\",\"Juillet\",\"Ao\\u00fbt\",\"Septembre\",\"Octobre\",\"Novembre\",\"D\\u00e9cembre\"]","monthNamesShort":"[\"Jan.\",\"F\\u00e9v.\",\"Mars\",\"Avr.\",\"Mai\",\"Juin\",\"Juil.\",\"Ao\\u00fbt\",\"Sep.\",\"Oct.\",\"Nov.\",\"D\\u00e9c.\"]","firstDay":"1","oc_config":"{\"session_lifetime\":1440,\"session_keepalive\":true,\"version\":\"16.0.1.1\",\"versionstring\":\"16.0.1\",\"enable_avatars\":true,\"lost_password_link\":null,\"modRewriteWorking\":true,\"sharing.maxAutocompleteResults\":0,\"sharing.minSearchStringLength\":0,\"blacklist_files_regex\":\"\\\\.(part|filepart)$\"}","oc_appconfig":"{\"core\":{\"defaultExpireDateEnabled\":false,\"defaultExpireDate\":null,\"defaultExpireDateEnforced\":null,\"enforcePasswordForPublicLink\":false,\"enableLinkPasswordByDefault\":false,\"sharingDisabledForUser\":false,\"resharingAllowed\":true,\"remoteShareAllowed\":true,\"federatedCloudShareDoc\":\"https:\\\/\\\/docs.nextcloud.com\\\/server\\\/16\\\/go.php?to=user-sharing-federated\",\"allowGroupSharing\":true},\"files\":{\"max_chunk_size\":10485760},\"comments\":{\"maxAutoCompleteResults\":10}}","oc_defaults":"{\"entity\":\"Tools\",\"name\":\"Tools\",\"title\":\"Tools\",\"baseUrl\":\"https:\\\/\\\/pra.rip\",\"syncClientUrl\":\"https:\\\/\\\/nextcloud.com\\\/install\\\/#install-clients\",\"docBaseUrl\":\"https:\\\/\\\/docs.nextcloud.com\",\"docPlaceholderUrl\":\"https:\\\/\\\/docs.nextcloud.com\\\/server\\\/16\\\/go.php?to=PLACEHOLDER\",\"slogan\":\" mon blog\",\"logoClaim\":\"\",\"shortFooter\":\"<a href=\\\"https:\\\/\\\/pra.rip\\\" target=\\\"_blank\\\" rel=\\\"noreferrer noopener\\\" class=\\\"entity-name\\\">Tools<\\\/a> \\u2013  mon blog\",\"longFooter\":\"<a href=\\\"https:\\\/\\\/pra.rip\\\" target=\\\"_blank\\\" rel=\\\"noreferrer noopener\\\" class=\\\"entity-name\\\">Tools<\\\/a> \\u2013  mon blog\",\"folder\":\"\"}","oc_capabilities":"{\"core\":{\"pollinterval\":60,\"webdav-root\":\"remote.php\\\/webdav\"},\"bruteforce\":{\"delay\":0},\"activity\":{\"apiv2\":[\"filters\",\"filters-api\",\"previews\",\"rich-strings\"]},\"ocm\":{\"enabled\":true,\"apiVersion\":\"1.0-proposal1\",\"endPoint\":\"https:\\\/\\\/tools.pra.rip\\\/ocm\",\"resourceTypes\":[{\"name\":\"file\",\"shareTypes\":[\"user\",\"group\"],\"protocols\":{\"webdav\":\"\\\/public.php\\\/webdav\\\/\"}}]},\"dav\":{\"chunking\":\"1.0\"},\"files_sharing\":{\"api_enabled\":true,\"public\":{\"enabled\":true,\"password\":{\"enforced\":false},\"expire_date\":{\"enabled\":false},\"multiple_links\":true,\"send_mail\":true,\"upload\":true,\"upload_files_drop\":true},\"resharing\":true,\"user\":{\"send_mail\":false,\"expire_date\":{\"enabled\":true}},\"group_sharing\":true,\"group\":{\"enabled\":true,\"expire_date\":{\"enabled\":true}},\"default_permissions\":31,\"federation\":{\"outgoing\":true,\"incoming\":true,\"expire_date\":{\"enabled\":true}},\"sharebymail\":{\"enabled\":true,\"upload_files_drop\":{\"enabled\":true},\"password\":{\"enabled\":true},\"expire_date\":{\"enabled\":true}}},\"files\":{\"undelete\":true,\"bigfilechunking\":true,\"blacklisted_files\":[\".htaccess\"],\"versioning\":true},\"theming\":{\"name\":\"Tools\",\"url\":\"https:\\\/\\\/pra.rip\",\"slogan\":\" mon blog\",\"color\":\"#0082c9\",\"color-text\":\"#ffffff\",\"color-element\":\"#0082c9\",\"logo\":\"https:\\\/\\\/tools.pra.rip\\\/apps\\\/theming\\\/image\\\/logo?useSvg=1&v=21\",\"background\":\"https:\\\/\\\/tools.pra.rip\\\/core\\\/img\\\/background.png?v=21\",\"background-plain\":false,\"background-default\":true},\"external\":{\"v1\":[\"sites\",\"device\",\"groups\",\"redirect\"]},\"password_policy\":{\"minLength\":8,\"enforceNonCommonPassword\":true,\"enforceNumericCharacters\":true,\"enforceSpecialCharacters\":false,\"enforceUpperLowerCase\":true},\"spreed\":{\"features\":[\"audio\",\"video\",\"chat-v2\",\"guest-signaling\",\"empty-group-room\",\"guest-display-names\",\"multi-room-users\",\"favorites\",\"last-room-activity\",\"no-ping\",\"system-messages\",\"mention-flag\",\"in-call-flags\",\"notification-levels\",\"invite-groups-and-mails\",\"locked-one-to-one-rooms\",\"read-only-rooms\"]}}"}}]},{"file":"\/var\/www\/tools\/lib\/private\/Template\/JSConfigHelper.php","line":287,"function":"emit","class":"OC_Hook","type":"::","args":["\\OCP\\Config","js",{"array":{"oc_debug":"false","oc_isadmin":"false","backendAllowsPasswordConfirmation":"true","oc_dataURL":"false","oc_webroot":"\"\"","oc_appswebroots":"{\"accessibility\":\"\/apps\/accessibility\",\"activity\":\"\/apps\/activity\",\"apporder\":\"\/apps\/apporder\",\"bookmarks\":\"\/apps\/bookmarks\",\"calendar\":\"\/apps\/calendar\",\"checksum\":\"\/apps\/checksum\",\"cloud_federation_api\":\"\/apps\/cloud_federation_api\",\"comments\":\"\/apps\/comments\",\"contacts\":\"\/apps\/contacts\",\"dav\":\"\/apps\/dav\",\"drawio\":\"\/apps\/drawio\",\"encryption\":\"\/apps\/encryption\",\"external\":\"\/apps\/external\",\"federatedfilesharing\":\"\/apps\/federatedfilesharing\",\"federation\":\"\/apps\/federation\",\"files\":\"\/apps\/files\",\"files_automatedtagging\":\"\/apps\/files_automatedtagging\",\"files_downloadactivity\":\"\/apps\/files_downloadactivity\",\"files_external\":\"\/apps\/files_external\",\"files_frommail\":\"\/apps\/files_frommail\",\"files_markdown\":\"\/apps\/files_markdown\",\"files_pdfviewer\":\"\/apps\/files_pdfviewer\",\"files_reader\":\"\/apps\/files_reader\",\"files_rightclick\":\"\/apps\/files_rightclick\",\"files_sharing\":\"\/apps\/files_sharing\",\"files_texteditor\":\"\/apps\/files_texteditor\",\"files_trackdownloads\":\"\/apps\/files_trackdownloads\",\"files_trashbin\":\"\/apps\/files_trashbin\",\"files_versions\":\"\/apps\/files_versions\",\"files_videoplayer\":\"\/apps\/files_videoplayer\",\"firstrunwizard\":\"\/apps\/firstrunwizard\",\"flowupload\":\"\/apps\/flowupload\",\"gallery\":\"\/apps\/gallery\",\"groupfolders\":\"\/apps\/groupfolders\",\"logreader\":\"\/apps\/logreader\",\"lookup_server_connector\":\"\/apps\/lookup_server_connector\",\"metadata\":\"\/apps\/metadata\",\"nextcloud_announcements\":\"\/apps\/nextcloud_announcements\",\"notes\":\"\/apps\/notes\",\"oauth2\":\"\/apps\/oauth2\",\"password_policy\":\"\/apps\/password_policy\",\"privacy\":\"\/apps\/privacy\",\"provisioning_api\":\"\/apps\/provisioning_api\",\"qownnotesapi\":\"\/apps\/qownnotesapi\",\"recommendations\":\"\/apps\/recommendations\",\"serverinfo\":\"\/apps\/serverinfo\",\"sharebymail\":\"\/apps\/sharebymail\",\"sociallogin\":\"\/apps\/sociallogin\",\"spreed\":\"\/apps\/spreed\",\"support\":\"\/apps\/support\",\"survey_client\":\"\/apps\/survey_client\",\"systemtags\":\"\/apps\/systemtags\",\"tasks\":\"\/apps\/tasks\",\"theming\":\"\/apps\/theming\",\"twofactor_backupcodes\":\"\/apps\/twofactor_backupcodes\",\"updatenotification\":\"\/apps\/updatenotification\",\"viewer\":\"\/apps\/viewer\",\"workflowengine\":\"\/apps\/workflowengine\"}","datepickerFormatDate":"\"dd\\\/MM\\\/y\"","nc_lastLogin":0,"nc_pageLoad":1559023956,"dayNames":"[\"Dimanche\",\"Lundi\",\"Mardi\",\"Mercredi\",\"Jeudi\",\"Vendredi\",\"Samedi\"]","dayNamesShort":"[\"Dim.\",\"Lun.\",\"Mar.\",\"Mer.\",\"Jeu.\",\"Ven.\",\"Sam.\"]","dayNamesMin":"[\"Di\",\"Lu\",\"Ma\",\"Me\",\"Je\",\"Ve\",\"Sa\"]","monthNames":"[\"Janvier\",\"F\\u00e9vrier\",\"Mars\",\"Avril\",\"Mai\",\"Juin\",\"Juillet\",\"Ao\\u00fbt\",\"Septembre\",\"Octobre\",\"Novembre\",\"D\\u00e9cembre\"]","monthNamesShort":"[\"Jan.\",\"F\\u00e9v.\",\"Mars\",\"Avr.\",\"Mai\",\"Juin\",\"Juil.\",\"Ao\\u00fbt\",\"Sep.\",\"Oct.\",\"Nov.\",\"D\\u00e9c.\"]","firstDay":"1","oc_config":"{\"session_lifetime\":1440,\"session_keepalive\":true,\"version\":\"16.0.1.1\",\"versionstring\":\"16.0.1\",\"enable_avatars\":true,\"lost_password_link\":null,\"modRewriteWorking\":true,\"sharing.maxAutocompleteResults\":0,\"sharing.minSearchStringLength\":0,\"blacklist_files_regex\":\"\\\\.(part|filepart)$\"}","oc_appconfig":"{\"core\":{\"defaultExpireDateEnabled\":false,\"defaultExpireDate\":null,\"defaultExpireDateEnforced\":null,\"enforcePasswordForPublicLink\":false,\"enableLinkPasswordByDefault\":false,\"sharingDisabledForUser\":false,\"resharingAllowed\":true,\"remoteShareAllowed\":true,\"federatedCloudShareDoc\":\"https:\\\/\\\/docs.nextcloud.com\\\/server\\\/16\\\/go.php?to=user-sharing-federated\",\"allowGroupSharing\":true},\"files\":{\"max_chunk_size\":10485760},\"comments\":{\"maxAutoCompleteResults\":10}}","oc_defaults":"{\"entity\":\"Tools\",\"name\":\"Tools\",\"title\":\"Tools\",\"baseUrl\":\"https:\\\/\\\/pra.rip\",\"syncClientUrl\":\"https:\\\/\\\/nextcloud.com\\\/install\\\/#install-clients\",\"docBaseUrl\":\"https:\\\/\\\/docs.nextcloud.com\",\"docPlaceholderUrl\":\"https:\\\/\\\/docs.nextcloud.com\\\/server\\\/16\\\/go.php?to=PLACEHOLDER\",\"slogan\":\" mon blog\",\"logoClaim\":\"\",\"shortFooter\":\"<a href=\\\"https:\\\/\\\/pra.rip\\\" target=\\\"_blank\\\" rel=\\\"noreferrer noopener\\\" class=\\\"entity-name\\\">Tools<\\\/a> \\u2013  mon blog\",\"longFooter\":\"<a href=\\\"https:\\\/\\\/pra.rip\\\" target=\\\"_blank\\\" rel=\\\"noreferrer noopener\\\" class=\\\"entity-name\\\">Tools<\\\/a> \\u2013  mon blog\",\"folder\":\"\"}","oc_capabilities":"{\"core\":{\"pollinterval\":60,\"webdav-root\":\"remote.php\\\/webdav\"},\"bruteforce\":{\"delay\":0},\"activity\":{\"apiv2\":[\"filters\",\"filters-api\",\"previews\",\"rich-strings\"]},\"ocm\":{\"enabled\":true,\"apiVersion\":\"1.0-proposal1\",\"endPoint\":\"https:\\\/\\\/tools.pra.rip\\\/ocm\",\"resourceTypes\":[{\"name\":\"file\",\"shareTypes\":[\"user\",\"group\"],\"protocols\":{\"webdav\":\"\\\/public.php\\\/webdav\\\/\"}}]},\"dav\":{\"chunking\":\"1.0\"},\"files_sharing\":{\"api_enabled\":true,\"public\":{\"enabled\":true,\"password\":{\"enforced\":false},\"expire_date\":{\"enabled\":false},\"multiple_links\":true,\"send_mail\":true,\"upload\":true,\"upload_files_drop\":true},\"resharing\":true,\"user\":{\"send_mail\":false,\"expire_date\":{\"enabled\":true}},\"group_sharing\":true,\"group\":{\"enabled\":true,\"expire_date\":{\"enabled\":true}},\"default_permissions\":31,\"federation\":{\"outgoing\":true,\"incoming\":true,\"expire_date\":{\"enabled\":true}},\"sharebymail\":{\"enabled\":true,\"upload_files_drop\":{\"enabled\":true},\"password\":{\"enabled\":true},\"expire_date\":{\"enabled\":true}}},\"files\":{\"undelete\":true,\"bigfilechunking\":true,\"blacklisted_files\":[\".htaccess\"],\"versioning\":true},\"theming\":{\"name\":\"Tools\",\"url\":\"https:\\\/\\\/pra.rip\",\"slogan\":\" mon blog\",\"color\":\"#0082c9\",\"color-text\":\"#ffffff\",\"color-element\":\"#0082c9\",\"logo\":\"https:\\\/\\\/tools.pra.rip\\\/apps\\\/theming\\\/image\\\/logo?useSvg=1&v=21\",\"background\":\"https:\\\/\\\/tools.pra.rip\\\/core\\\/img\\\/background.png?v=21\",\"background-plain\":false,\"background-default\":true},\"external\":{\"v1\":[\"sites\",\"device\",\"groups\",\"redirect\"]},\"password_policy\":{\"minLength\":8,\"enforceNonCommonPassword\":true,\"enforceNumericCharacters\":true,\"enforceSpecialCharacters\":false,\"enforceUpperLowerCase\":true}\"spreed\":{\"features\":[\"audio\",\"video\",\"chat-v2\",\"guest-signaling\",\"empty-group-room\",\"guest-display-names\",\"multi-room-users\",\"favorites\",\"last-room-activity\",\"no-ping\",\"system-messages\",\"mention-flag\",\"in-call-flags\",\"notification-levels\",\"invite-groups-and-mails\",\"locked-one-to-one-rooms\",\"read-only-rooms\"]}}"}}]},{"file":"\/var\/www\/tools\/lib\/private\/TemplateLayout.php","line":176,"function":"getConfig","class":"OC\\Template\\JSConfigHelper","type":"->","args":[]},{"file":"\/var\/www\/tools\/lib\/private\/legacy\/template.php","line":183,"function":"__construct","class":"OC\\TemplateLayout","type":"->","args":["guest","core"]},{"file":"\/var\/www\/tools\/lib\/public\/AppFramework\/Http\/TemplateResponse.php","line":160,"function":"fetchPage","class":"OC_Template","type":"->","args":[{"messages":[],"loginName":"","user_autofocus":true,"login_form_autocomplete":"on","resetPasswordLink":"","canResetPassword":true,"alt_login":[],"throttle_delay":0}]},{"file":"\/var\/www\/tools\/lib\/private\/AppFramework\/Http\/Dispatcher.php","line":119,"function":"render","class":"OCP\\AppFramework\\Http\\TemplateResponse","type":"->","args":[]},{"file":"\/var\/www\/tools\/lib\/private\/AppFramework\/App.php","line":126,"function":"dispatch","class":"OC\\AppFramework\\Http\\Dispatcher","type":"->","args":[{"__class__":"OC\\Core\\Controller\\LoginController"},"showLoginForm"]},{"file":"\/var\/www\/tools\/lib\/private\/AppFramework\/Routing\/RouteActionHandler.php","line":47,"function":"main","class":"OC\\AppFramework\\App","type":"::","args":["OC\\Core\\Controller\\LoginController","showLoginForm",{"__class__":"OC\\AppFramework\\DependencyInjection\\DIContainer"},{"_route":"core.login.showLoginForm"}]},{"function":"__invoke","class":"OC\\AppFramework\\Routing\\RouteActionHandler","type":"->","args":[{"_route":"core.login.showLoginForm"}]},{"file":"\/var\/www\/tools\/lib\/private\/Route\/Router.php","line":297,"function":"call_user_func","args":[{"__class__":"OC\\AppFramework\\Routing\\RouteActionHandler"},{"_route":"core.login.showLoginForm"}]},{"file":"\/var\/www\/tools\/lib\/base.php","line":975,"function":"match","class":"OC\\Route\\Router","type":"->","args":["\/login"]},{"file":"\/var\/www\/tools\/index.php","line":42,"function":"handleRequest","class":"OC","type":"::","args":[]}],"File":"\/var\/www\/tools\/apps\/files_reader\/lib\/config.php","Line":28,"CustomMessage":"--"},"userAgent":"Mozilla\/5.0 (X11; Linux x86_64; rv:67.0) Gecko\/20100101 Firefox\/67.0","version":"16.0.1.1"}

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

<?php
$CONFIG = array (
  'instanceid' => 'ocw4k21t272y',
  'passwordsalt' => 'sYHNuUvyX2TkUl4BPsmM3KPpqc3njF',
  'secret' => '6vEjljoup0EqxNc8iMz6isuJwQTrImQT9Z+Q2IUdBzBv8AuV',
  'trusted_domains' =>
  array (
    0 => 'tools.pra.rip',
  ),
  'datadirectory' => '/var/www/tools/data',
  'overwrite.cli.url' => 'https://tools.pra.rip',
  'dbtype' => 'pgsql',
  'version' => '16.0.1.1',
  'dbname' => 'cloud8',
  'dbhost' => 'pg.tech.pra.rip',
  'dbtableprefix' => 'oc_',
  'dbuser' => 'cloud',
  'dbpassword' => 'cloud',
  'installed' => true,
  'loglevel' => 0,
  'mail_smtpmode' => 'smtp',
  'mail_from_address' => 'tools',
  'mail_domain' => 'pra.rip',
  'mail_smtphost' => 'mx1.pra.rip',
  'mail_smtpport' => '25',
  'memcache.local' => '\\OC\\Memcache\\APCu',
  'blacklisted_files' =>
  array (
    0 => '.htaccess',
  ),
  'cipher' => 'AES-256-CFB',
  'minimum.supported.desktop.version' => '1.7.0',
  'default_language' => 'fr',
  'knowledgebaseenabled' => true,
  'enable_avatars' => true,
  'allow_user_to_change_display_name' => true,
  'remember_login_cookie_lifetime' => 1296000,
  'session_lifetime' => 86400,
  'session_keepalive' => true,
  'skeletondirectory' => '/var/www/tools/core/skeleton',
  'mail_smtpsecure' => 'tls',
  'forceSSLforSubdomains' => true,
  'config_is_read_only' => false,
  'maintenance' => false,
  'log_type' => 'owncloud',
  'logfile' => '/var/www/tools/data/logs/nextcloud.log',
  'log_rotate_size' => 104857600,
  'log_query' => false,
  'logdateformat' => 'd F, Y H:i:s',
  'logtimezone' => 'Europe/Paris',
  'theme' => '',
  'trashbin_retention_obligation' => 'auto',
  'htaccess.RewriteBase' => '/',
  'updater.release.channel' => 'stable',
  'integrity.check.disabled' => false,
  'preview_libreoffice_path' => '/usr/bin/libreoffice',
  'preview_office_cl_parameters' => ' --headless --nologo --nofirststartwizard --invisible --norestore -convert-to pdf -outdir ',
  'enabledPreviewProviders' =>
  array (
    0 => 'OC\\Preview\\Image',
    1 => 'OC\\Preview\\MP3',
    2 => 'OC\\Preview\\TXT',
    3 => 'OC\\Preview\\MarkDown',
    4 => 'OC\\Preview\\Epub',
    5 => 'OC\\Preview\\PDF',
    6 => 'OC\\Preview\\OpenDocument',
    7 => 'OC\\Preview\\StarOffice',
    8 => 'OC\\Preview\\MSOfficeDoc',
    9 => 'OC\\Preview\\MSOffice2003',
    10 => 'OC\\Preview\\MSOffice2007',
    11 => 'OC\\Preview\\FB2',
  ),
  'mail_smtpauthtype' => 'LOGIN',
  'mail_sendmailmode' => 'smtp',
  'app_install_overwrite' =>
  array (
    0 => 'files_downloadactivity',
    1 => 'admin_notifications',
    2 => 'defaultlinkopen',
    3 => 'files_reader',
  ),
);

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

2a01:e35:2fde:d441::203 - - [28/May/2019:07:03:15 +0000] "GET /settings/user HTTP/1.0" 500 7646 "-" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_2) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.0.2 Safari/605.1.15"

thank you for your help

Hello,

no idea?

thank you

i disable all again
tryin to login working
re-enable
seems the reader (epub) app give the trouble

Hello,

I have te same problem, nothing has change on our instllation, no app, really nothing since few weeks.
Screenshot_8

Thank you !

hello

infact i disable all again and enable one per one and doing test
in my case social sharing via (mail,facebook, google+) generate the issue

pra