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Getting help
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(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 isnât supplied; for fastest response please provide as much as you can. 
The Basics
- Nextcloud Server version (e.g., 29.x.x):
- Operating system and version (e.g., Ubuntu 24.04):
- Web server and version (e.g, Apache 2.4.25):
- Reverse proxy and version _(e.g. nginx 1.27.2)
- PHP version (e.g, 8.3):
- Is this the first time youâve seen this error? (Yes / No):
- When did this problem seem to first start?
setting up Home Assistant backups and doing maintenance on NC
- Installation method (e.g. AlO, NCP, Bare Metal/Archive, etc.)
- Are you using CloudfIare, mod_security, or similar? (Yes / No)
Summary of the issue you are facing:
When setting Nextcloud to maintenance mode it always logs an error if some App wants to authenticate. Shouldnât that be a warning instead? As Errors should inidicate system issues, not failed logins.?
Steps to replicate it (hint: details matter!):
-
set Nextcloud to maintenance mode
-
try to push data via WebDAV (in my case this is done by HomeAssistant for backup)
-
chek the logs
Log entries
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.
Below error occured due to my active session when setting NC to maintenance mode, but itâs the same error for my HA-Backup.
{"reqId":"AXBmDGRVQBFu7zsj7Vis","level":3,"time":"2025-11-04T09:24:06+00:00","remoteAddr":"192.168.178.204","user":"basti","app":"no app in context","method":"PROPFIND","url":"/remote.php/dav/files/basti/","message":"Uncaught exception","userAgent":"Mozilla/5.0 (Linux) mirall/4.0.1 (build 34593) (Nextcloud, ubuntu-6.8.0-79-generic ClientArchitecture: x86_64 OsArchitecture: x86_64)","version":"32.0.1.2","clientReqId":"251956ad-a198-4ec3-b264-576956df0e0e","exception":{"Exception":"OCA\\DAV\\Exception\\ServerMaintenanceMode","Message":"System is in maintenance mode.","Code":0,"Trace":[{"file":"/var/www/html/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"checkMaintenanceMode","class":"OCA\\DAV\\Connector\\Sabre\\MaintenancePlugin","type":"->","args":[{"__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]},{"file":"/var/www/html/3rdparty/sabre/dav/lib/DAV/Server.php","line":456,"function":"emit","class":"Sabre\\DAV\\Server","type":"->","args":["beforeMethod:PROPFIND",[{"__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]]},{"file":"/var/www/html/apps/dav/lib/Connector/Sabre/Server.php","line":211,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->","args":[{"__class__":"Sabre\\HTTP\\Request"},{"__class__":"Sabre\\HTTP\\Response"}]},{"file":"/var/www/html/apps/dav/lib/Server.php","line":424,"function":"start","class":"OCA\\DAV\\Connector\\Sabre\\Server","type":"->","args":[]},{"file":"/var/www/html/apps/dav/appinfo/v2/remote.php","line":22,"function":"exec","class":"OCA\\DAV\\Server","type":"->","args":[]},{"file":"/var/www/html/remote.php","line":151,"args":["/var/www/html/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/var/www/html/apps/dav/lib/Connector/Sabre/MaintenancePlugin.php","Line":65,"message":"Uncaught exception","exception":{},"CustomMessage":"Uncaught exception"}}
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": {
"htaccess.RewriteBase": "\/",
"memcache.local": "\\OC\\Memcache\\APCu",
"apps_paths": [
{
"path": "\/var\/www\/html\/apps",
"url": "\/apps",
"writable": false
},
{
"path": "\/var\/www\/html\/custom_apps",
"url": "\/custom_apps",
"writable": true
}
],
"upgrade.disable-web": true,
"passwordsalt": "***REMOVED SENSITIVE VALUE***",
"secret": "***REMOVED SENSITIVE VALUE***",
"trusted_domains": [
"localhost",
"***REMOVED SENSITIVE VALUE***"
],
"datadirectory": "***REMOVED SENSITIVE VALUE***",
"dbtype": "mysql",
"version": "32.0.1.2",
"overwrite.cli.url": "http:\/\/localhost",
"dbname": "***REMOVED SENSITIVE VALUE***",
"dbhost": "***REMOVED SENSITIVE VALUE***",
"dbtableprefix": "oc_",
"mysql.utf8mb4": true,
"dbuser": "***REMOVED SENSITIVE VALUE***",
"dbpassword": "***REMOVED SENSITIVE VALUE***",
"installed": true,
"instanceid": "***REMOVED SENSITIVE VALUE***",
"maintenance": false,
"maintenance_window_start": 2,
"loglevel": 2
}
}
Apps
The output of occ app:list (if possible).
Enabled:
- activity: 5.0.0-dev.0
- app_api: 32.0.0
- bruteforcesettings: 5.0.0-dev.0
- circles: 32.0.0
- cloud_federation_api: 1.16.0
- comments: 1.22.0
- contactsinteraction: 1.13.1
- dashboard: 7.12.0
- dav: 1.34.2
- federatedfilesharing: 1.22.0
- federation: 1.22.0
- files: 2.4.0
- files_downloadlimit: 5.0.0-dev.0
- files_pdfviewer: 5.0.0-dev.0
- files_reminders: 1.5.0
- files_sharing: 1.24.0
- files_trashbin: 1.22.0
- files_versions: 1.25.0
- firstrunwizard: 5.0.0-dev.0
- logreader: 5.0.0-dev.0
- lookup_server_connector: 1.20.0
- nextcloud_announcements: 4.0.0-dev.0
- notifications: 5.0.0-dev.0
- oauth2: 1.20.0
- password_policy: 4.0.0-dev.0
- photos: 5.0.0-dev.1
- privacy: 4.0.0-dev.0
- profile: 1.1.0
- provisioning_api: 1.22.0
- recommendations: 5.0.0-dev.0
- related_resources: 3.0.0-dev.0
- serverinfo: 4.0.0-dev.0
- settings: 1.15.1
- sharebymail: 1.22.0
- support: 4.0.0-dev.0
- survey_client: 4.0.0-dev.0
- systemtags: 1.22.0
- text: 6.0.1
- theming: 2.7.0
- twofactor_backupcodes: 1.21.0
- updatenotification: 1.22.0
- user_status: 1.12.0
- viewer: 5.0.0-dev.0
- weather_status: 1.12.0
- webhook_listeners: 1.3.0
- workflowengine: 2.14.0
Disabled:
- admin_audit: 1.22.0
- encryption: 2.20.0
- files_external: 1.24.0
- suspicious_login: 10.0.0-dev.0
- twofactor_nextcloud_notification: 6.0.0-dev.0
- twofactor_totp: 14.0.0
- user_ldap: 1.23.0
Any help appreciated! 
Mayber thereâs an option to treat such errors as warning or the like? I donât want to always check my logs due to errors that occured because of login attempts during maintenance.
