Support intro
Sorry to hear you’re facing problems. 
The community help forum (help.nextcloud.com) is for home and non-enterprise users. Support is provided by other community members on a best effort / “as available” basis. All of those responding are volunteering their time to help you.
If you’re using Nextcloud in a business/critical setting, paid and SLA-based support services can be accessed via portal.nextcloud.com where Nextcloud engineers can help ensure your business keeps running smoothly.
Getting help
In order to help you as efficiently (and quickly!) as possible, please fill in as much of the below requested information as you can.
Before clicking submit: Please check if your query is already addressed via the following resources:
- Official documentation (searchable and regularly updated)
- How to topics and FAQs
- Forum search
(Utilizing these existing resources is typically faster. It also helps reduce the load on our generous volunteers while elevating the signal to noise ratio of the forums otherwise arising from the same queries being posted repeatedly).
Some or all of the below information will be requested if it isn’t supplied; for fastest response please provide as much as you can. 
The Basics
- Nextcloud Server version (e.g., 29.x.x):
- 31.0.4 RC1
- Operating system and version (e.g., Ubuntu 24.04):
- Unraid 7.0.0
- Web server and version (e.g, Apache 2.4.25):
- ¯_(ツ)_/¯ whatever is used by the lscr.io/linuxserver/nextcloud:develop image. Looks like it may be nginx 3.21
- Reverse proxy and version _(e.g. nginx 1.27.2)
- Nginx Proxy Manager v2.12.3
- PHP version (e.g, 8.3):
- ¯_(ツ)_/¯ whatever is used by the lscr.io/linuxserver/nextcloud:develop image. Looks like it may be 8.3
- Is this the first time you’ve seen this error? (Yes / No):
- Yes
- When did this problem seem to first start?
- The first time I tried to connect with the Android client
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
- Docker container
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
- Cloudflare (dns only)
Summary of the issue you are facing:
Unable to sign into Android client. Get message saying malformed server configuration when attempting to connect to host.
Steps to replicate it (hint: details matter!):
- Launch android app
- Enter host
- Submit
Log entries
ADB logcat
04-24 14:37:37.396 11092 11092 D OperationsService: Starting command with id 10
04-24 14:37:37.410 11092 23020 D OwnCloudClient #1: REQUEST GET /status.php
04-24 14:37:37.460 11092 23020 D AdvancedSslSocketFactory: Creating SSL Socket with remote xxx.yyy.zzz:443, local null:0, params: org.apache.commons.httpclient.params.HttpConnectionParams@74c5e3b
04-24 14:37:37.460 11092 23020 D AdvancedSslSocketFactory: ... with connection timeout 50000 and socket timeout 50000
04-24 14:37:37.556 11092 23020 I ServerNameIndicator: SNI done, hostname: xxx.yyy.zzz
04-24 14:37:38.046 11092 23020 W HttpMethodBase: Going to buffer response body of large or unknown size. Using getResponseBodyAsStream instead is recommended.
04-24 14:37:38.047 11092 23020 I GetStatusRemoteOperation: Connection check at https://xxx.yyy.zzz: Operation finished with HTTP status code -1 (success)
04-24 14:37:38.047 11092 23020 D GetServerInfoOperation: Trying empty authorization to detect authentication method
04-24 14:37:38.049 11092 23020 D OwnCloudClient #1: REQUEST HEAD /remote.php/dav
04-24 14:37:38.762 11092 23020 D ExistenceCheckRemoteOperation: Existence check for https://xxx.yyy.zzz/remote.php/dav/files/null/ targeting for existence finished with HTTP status 500(FAIL)
04-24 14:37:38.763 11092 23020 D DetectAuthenticationMethodOperation: Authentication method found: UNKNOWN
04-24 14:37:38.763 11092 23020 D OperationsService: Called 1 listeners
04-24 14:37:38.763 11092 23020 D OperationsService: Stopping after command with id 10
Nextcloud
Please provide the log entries from your Nextcloud log that are generated during the time of problem (via the Copy raw option from Administration settings->Logging screen or from your nextcloud.log located in your data directory). Feel free to use a pastebin/gist service if necessary.
{"reqId":"2UumPReZTzmgfbZHLLWQ","level":3,"time":"2025-04-24T18:07:32+00:00","remoteAddr":"xxx.xxx.xxx.xxx","user":false,"app":"PHP","method":"HEAD","url":"/remote.php/dav","message":"Declaration of Psr\\Log\\AbstractLogger::emergency($message, array $context = []) must be compatible with Psr\\Log\\LoggerInterface::emergency(Stringable|string $message, array $context = []): void at /config/www/nextcloud/apps/integration_onedrive/vendor/psr/log/Psr/Log/AbstractLogger.php#22","userAgent":"Mozilla/5.0 (Android) Nextcloud-android/3.31.1","version":"31.0.4.0","data":{"app":"PHP"},"id":"680a7deb9ecc9"}
Web server / Reverse Proxy
The output of your Apache/nginx/system log in /var/log/____:
[24/Apr/2025:15:14:06 -0300] - 200 200 - GET https xxx.yyy.zzz "/status.php" [Client xxx.xxx.xxx.xxx] [Length 185] [Gzip -] [Sent-to xxx.xxx.xxx.xxx] "Mozilla/5.0 (Android) Nextcloud-android/3.31.1" "-"
[24/Apr/2025:15:14:06 -0300] - 500 500 - HEAD https xxx.yyy.zzz "/remote.php/dav" [Client xxx.xxx.xxx.xxx] [Length 0] [Gzip -] [Sent-to xxx.xxx.xxx.xxx] "Mozilla/5.0 (Android) Nextcloud-android/3.31.1" "-"
Configuration
Nextcloud
The output of occ config:list system or similar is best, but, if not possible, the contents of your config.php file from /path/to/nextcloud is fine (make sure to remove any identifiable information!):
{
"system": {
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"instanceid": "***REMOVED SENSITIVE VALUE***",
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"xxx.yyy.zzz",
"xxx.xxx.xxx.xxx:16443"
],
"dbtype": "pgsql",
"version": "31.0.4.0",
"overwrite.cli.url": "https:\/\/xxx.xxx.xxx.xxx:16443",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbport": "",
"dbtableprefix": "oc_",
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"memcache.local": "\\OC\\Memcache\\APCu",
"filelocking.enabled": true,
"memcache.locking": "\\OC\\Memcache\\APCu",
"upgrade.disable-web": true
}
}
Apps
The output of occ app:list (if possible).
Enabled:
- activity: 4.0.0
- app_api: 5.0.2
- bruteforcesettings: 4.0.0
- circles: 31.0.0
- cloud_federation_api: 1.14.0
- comments: 1.21.0
- contactsinteraction: 1.12.0
- dashboard: 7.11.0
- dav: 1.33.0
- federatedfilesharing: 1.21.0
- federation: 1.21.0
- files: 2.3.1
- files_downloadlimit: 4.0.0
- files_pdfviewer: 4.0.0
- files_reminders: 1.4.0
- files_sharing: 1.23.1
- files_trashbin: 1.21.0
- files_versions: 1.24.0
- firstrunwizard: 4.0.0
- integration_google: 3.2.0
- integration_onedrive: 3.3.1
- logreader: 4.0.0
- lookup_server_connector: 1.19.0
- nextcloud_announcements: 3.0.0
- notifications: 4.0.0
- oauth2: 1.19.1
- password_policy: 3.0.0
- photos: 4.0.0-dev.1
- privacy: 3.0.0
- profile: 1.0.0
- provisioning_api: 1.21.0
- recommendations: 4.0.0
- related_resources: 2.0.0
- serverinfo: 3.0.0
- settings: 1.14.0
- sharebymail: 1.21.0
- support: 3.0.0
- survey_client: 3.0.0
- systemtags: 1.21.1
- text: 5.0.0
- theming: 2.6.1
- twofactor_backupcodes: 1.20.0
- updatenotification: 1.21.0
- user_status: 1.11.0
- viewer: 4.0.0
- weather_status: 1.11.0
- webhook_listeners: 1.2.0
- workflowengine: 2.13.0
Disabled:
- admin_audit: 1.21.0
- encryption: 2.19.0
- files_external: 1.23.0
- suspicious_login: 9.0.1
- twofactor_nextcloud_notification: 5.0.0
- twofactor_totp: 13.0.0-dev.0
- user_ldap: 1.22.0
Tips for increasing the likelihood of a response
- Use the
preformatted textformatting option in the editor for all log entries and configuration output. - If screenshots are useful, feel free to include them.
- If possible, also include key error output in text form so it can be searched for.
- Try to edit log output only minimally (if at all) so that it can be ran through analyzers / formatters by those trying to help you.
I thought that was just an unrelated error in the logs. That fixed it, thank you.