Subscription Calendar Events are not returned by REPORT dav request

[Juergen-Vollmer]

Steps to reproduce

1. Add a new calender from an ical link
2. the dates does not show anymore

Expected behavior

The dates shpoud show, it workded until approx 2 weeks ago.

Actual behaviour

the dates does not show anymore in the webinterface of nextcloud

Calendar app version

4.6.0

CalDAV-clients used

davx5

Browser

firefox, chromium actual versions

Client operating system

opensuse 15.5

Server operating system

opensuse 15.5

Web server

Apache

Database engine version

MariaDB

PHP engine version

None

Nextcloud version

28.0.0 rc2

Updated from an older installed version or fresh install

Updated from an older version

List of activated apps

No response

Nextcloud configuration

Enabled:
- activity: 2.20.0
- admin_audit: 1.18.0
- calendar: 4.6.0
- circles: 28.0.0-dev
- cloud_federation_api: 1.11.0
- comments: 1.18.0
- contacts: 5.5.0-rc.2
- cookbook: 0.10.4
- dav: 1.29.1
- deck: 1.12.0-beta.4
- federatedfilesharing: 1.18.0
- federation: 1.18.0
- files: 2.0.0
- files_external: 1.20.0
- files_markdown: 2.4.1
- files_mindmap: 0.0.30
- files_pdfviewer: 2.9.0
- files_reminders: 1.1.0
- files_sharing: 1.20.0
- files_trashbin: 1.18.0
- files_versions: 1.21.0
- firstrunwizard: 2.17.0
- forms: 4.0.0-alpha.2
- groupfolders: 16.0.0
- keeweb: 0.6.13
- logreader: 2.13.0
- lookup_server_connector: 1.16.0
- mail: 3.5.0-rc.2
- nextcloud_announcements: 1.17.0
- notes: 4.9.0-beta.3
- notifications: 2.16.0
- oauth2: 1.16.3
- password_policy: 1.18.0
- photos: 2.4.0
- polls: 6.0.0-rc1
- previewgenerator: 5.4.0
- privacy: 1.12.0
- provisioning_api: 1.18.0
- recommendations: 2.0.0
- related_resources: 1.3.0
- richdocuments: 8.3.0-beta.1
- serverinfo: 1.18.0
- settings: 1.10.0
- sharebymail: 1.18.0
- spreed: 18.0.0-rc.2
- support: 1.11.0
- survey_client: 1.16.0
- suspicious_login: 6.0.0
- systemtags: 1.18.0
- tasks: 0.15.0
- text: 3.9.1
- theming: 2.3.0
- twofactor_admin: 4.4.0
- twofactor_backupcodes: 1.17.0
- twofactor_email: 2.7.4
- twofactor_totp: 10.0.0-beta.2
- updatenotification: 1.18.0
- user_status: 1.8.1
- viewer: 2.2.0
- weather_status: 1.8.0
- workflowengine: 2.10.0
Disabled:
- afterlogic: 2.0.8 (installed 2.0.8)
- audioplayer: 3.4.0 (installed 3.4.0)
- bruteforcesettings: 2.8.0
- calendar_resource_management: 0.6.0-alpha.1 (installed 0.6.0-alpha.1)
- contactsinteraction: 1.9.0 (installed 1.2.0)
- customproperties: 2.0.4 (installed 2.0.4)
- dashboard: 7.8.0 (installed 7.6.0)
- drawio: 2.1.4 (installed 2.1.4)
- encryption: 2.16.0
- files_readmemd: 2.0.0 (installed 2.0.0)
- files_rightclick: 0.15.1 (installed 1.6.0)
- files_videoplayer: 1.14.0
- integration_collaboard: 1.0.6 (installed 1.0.6)
- phonetrack: 0.7.6 (installed 0.7.6)
- user_ldap: 1.19.0

Web server error log

No response

Log file

No response

Browser log

No response

Additional info

No response

[tcitworld]

Please fill the issue template, we can't help without some details!

In particular, check the output of your nextcloud.log file when removing and re-adding the subscription, as well as your browser logs when loading the calendar app.

[Juergen-Vollmer]

Just a short update:
The problem still exists (28.0.0 RC4). The following works:

1) Downloading the ICAL file and store in a file
2) Adding a new caleander and import that file
3) The dates are shown in Nextcloud calender
This shows that the ical file is ok, and display of ical-dates works.
For me it seems that the direct ical-mport via an URL (calender subscription) does not work.

Bye
Jürgen

[Juergen-Vollmer]

Now I tried to add the URL again, and I checked the nextlog file. But nothing was written to the log file about adding and deleting the ICAL-subscription. Other messages occur from time to time in the log file.

Jürgen

[miaulalala]

Hi @Juergen-Vollmer , have you enabled debug mode? If not, can you try to do so and try adding the calendar again please?

[Juergen-Vollmer]

Hi,
I added debug=true and log_level = 0 in the config.php (I just replaced unser and domain names)

Here the logfile output when I add a calendar:

{"reqId":"DPo5OEN8p06AYGN9ag6n","level":0,"time":"2023-12-11T10:14:45+00:00","remoteAddr":"192.168.0.1","user":"j.....","app":"dav","method":"MKCOL","url":"/remote.php/dav/calendars/j...../rapladhbw-karlsruhede-1","message":"Refreshing webcal data for subscription 47","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0","version":"28.0.0.10","data":{"app":"dav"}}
{"reqId":"DPo5OEN8p06AYGN9ag6n","level":2,"time":"2023-12-11T10:14:45+00:00","remoteAddr":"192.168.0.1","user":"j.....","app":"no app in context","method":"MKCOL","url":"/remote.php/dav/calendars/j...../rapladhbw-karlsruhede-1","message":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first.","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0","version":"28.0.0.10","exception":{"Exception":"Doctrine\\DBAL\\Query\\QueryException","Message":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first.","Code":0,"Trace":[{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php","line":3096,"function":"where","class":"OC\\DB\\QueryBuilder\\QueryBuilder","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/lib/public/AppFramework/Db/TTransactional.php","line":63,"function":"OCA\\DAV\\CalDAV\\{closure}","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php","line":3075,"function":"atomic","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/CalDAV/WebcalCaching/RefreshWebcalService.php","line":101,"function":"purgeAllCachedEventsForSubscription","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/Listener/SubscriptionListener.php","line":61,"function":"refreshSubscription","class":"OCA\\DAV\\CalDAV\\WebcalCaching\\RefreshWebcalService","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/lib/private/EventDispatcher/ServiceEventListener.php","line":86,"function":"handle","class":"OCA\\DAV\\Listener\\SubscriptionListener","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/symfony/event-dispatcher/EventDispatcher.php","line":230,"function":"__invoke","class":"OC\\EventDispatcher\\ServiceEventListener","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/symfony/event-dispatcher/EventDispatcher.php","line":59,"function":"callListeners","class":"Symfony\\Component\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/lib/private/EventDispatcher/EventDispatcher.php","line":94,"function":"dispatch","class":"Symfony\\Component\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/lib/private/EventDispatcher/EventDispatcher.php","line":106,"function":"dispatch","class":"OC\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php","line":2522,"function":"dispatchTyped","class":"OC\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/dav/lib/CalDAV/CalendarHome.php","line":249,"function":"createSubscription","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/CalDAV/CalendarHome.php","line":94,"function":"createExtendedCollection","class":"Sabre\\CalDAV\\CalendarHome","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":1199,"function":"createExtendedCollection","class":"OCA\\DAV\\CalDAV\\CalendarHome","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":560,"function":"createCollection","class":"Sabre\\DAV\\Server","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpMkcol","class":"Sabre\\DAV\\CorePlugin","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":253,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":321,"function":"start","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/Server.php","line":370,"function":"exec","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/appinfo/v2/remote.php","line":35,"function":"exec","class":"OCA\\DAV\\Server","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/remote.php","line":172,"args":["/srv/www/example.domain/www/nextcloud/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/srv/www/example.domain/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php","Line":869,"message":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere()or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first.","exception":{},"CustomMessage":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first."}}
{"reqId":"DPo5OEN8p06AYGN9ag6n","level":2,"time":"2023-12-11T10:14:45+00:00","remoteAddr":"192.168.0.1","user":"j.....","app":"no app in context","method":"MKCOL","url":"/remote.php/dav/calendars/j...../rapladhbw-karlsruhede-1","message":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first.","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0","version":"28.0.0.10","exception":{"Exception":"Doctrine\\DBAL\\Query\\QueryException","Message":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first.","Code":0,"Trace":[{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php","line":3101,"function":"where","class":"OC\\DB\\QueryBuilder\\QueryBuilder","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/lib/public/AppFramework/Db/TTransactional.php","line":63,"function":"OCA\\DAV\\CalDAV\\{closure}","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php","line":3075,"function":"atomic","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/CalDAV/WebcalCaching/RefreshWebcalService.php","line":101,"function":"purgeAllCachedEventsForSubscription","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/Listener/SubscriptionListener.php","line":61,"function":"refreshSubscription","class":"OCA\\DAV\\CalDAV\\WebcalCaching\\RefreshWebcalService","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/lib/private/EventDispatcher/ServiceEventListener.php","line":86,"function":"handle","class":"OCA\\DAV\\Listener\\SubscriptionListener","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/symfony/event-dispatcher/EventDispatcher.php","line":230,"function":"__invoke","class":"OC\\EventDispatcher\\ServiceEventListener","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/symfony/event-dispatcher/EventDispatcher.php","line":59,"function":"callListeners","class":"Symfony\\Component\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/lib/private/EventDispatcher/EventDispatcher.php","line":94,"function":"dispatch","class":"Symfony\\Component\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/lib/private/EventDispatcher/EventDispatcher.php","line":106,"function":"dispatch","class":"OC\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php","line":2522,"function":"dispatchTyped","class":"OC\\EventDispatcher\\EventDispatcher","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/dav/lib/CalDAV/CalendarHome.php","line":249,"function":"createSubscription","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/CalDAV/CalendarHome.php","line":94,"function":"createExtendedCollection","class":"Sabre\\CalDAV\\CalendarHome","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":1199,"function":"createExtendedCollection","class":"OCA\\DAV\\CalDAV\\CalendarHome","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":560,"function":"createCollection","class":"Sabre\\DAV\\Server","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpMkcol","class":"Sabre\\DAV\\CorePlugin","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":253,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":321,"function":"start","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/lib/Server.php","line":370,"function":"exec","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/apps/dav/appinfo/v2/remote.php","line":35,"function":"exec","class":"OCA\\DAV\\Server","type":"->"},{"file":"/srv/www/example.domain/www/nextcloud/remote.php","line":172,"args":["/srv/www/example.domain/www/nextcloud/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/srv/www/example.domain/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php","Line":869,"message":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere()or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first.","exception":{},"CustomMessage":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first."}}
{"reqId":"DPo5OEN8p06AYGN9ag6n","level":0,"time":"2023-12-11T10:14:46+00:00","remoteAddr":"192.168.0.1","user":"j.....","app":"dav","method":"MKCOL","url":"/remote.php/dav/calendars/j...../rapladhbw-karlsruhede-1","message":"Scheduling webcal data refreshment for subscription 47","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0","version":"28.0.0.10","data":{"app":"dav"}}

Now I see here a warning

"File":"/srv/www/example.domain/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php","Line":869,"message":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere()or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first."......

May be this helps

Jürgen

[miaulalala]

@Juergen-Vollmer can you try to add the patch from #42144 to see if that fixes things? Otherwise I have to dig deeper.

[Juergen-Vollmer]

I added two times the line (in source 3095 and 3101)
$query = $this->db->getQueryBuilder();
Is that what you meant?

But still the calender does not show up

But still I get the following in the logfile

deleting a calender

{"Reqidx":"rk9Hex6BwGCD67IPBKMz","level":2,"time":"2023-12-11T12:48:13+00:00","remoteAddr":"192.168.0.1","user":"j.....","app":"no app in context","method":"DELETE","url":"/remote.php/dav/calendars/j...../rapladhbw-karlsruhede-1/","message":"Using where() on non-empty WHERE part, pleaseverify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first.","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0","version":"28.0.0.10","exception":{"Exception":"Doctrine\\DBAL\\Query\\QueryException","Message":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first.","Code":0,"Trace":[{"file":"/srv/www/example.daomain/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php","line":2599,"function":"where","class":"OC\\DB\\QueryBuilder\\QueryBuilder","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/lib/public/AppFramework/Db/TTransactional.php","line":63,"function":"OCA\\DAV\\CalDAV\\{closure}","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/www/example.daomain/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php","line":2584,"function":"atomic","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/dav/lib/CalDAV/Subscriptions/Subscription.php","line":92,"function":"deleteSubscription","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Tree.php","line":185,"function":"delete","class":"Sabre\\CalDAV\\Subscriptions\\Subscription","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":281,"function":"delete","class":"Sabre\\DAV\\Tree","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpDelete","class":"Sabre\\DAV\\CorePlugin","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":253,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":321,"function":"start","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/apps/dav/lib/Server.php","line":370,"function":"exec","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/apps/dav/appinfo/v2/remote.php","line":35,"function":"exec","class":"OCA\\DAV\\Server","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/remote.php","line":172,"args":["/srv/www/example.daomain/www/nextcloud/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/srv/www/example.daomain/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php","Line":869,"message":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first.","exception":{},"CustomMessage":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first."}}
{"reqId":"rk9Hex6BwGCD67IPBKMz","level":2,"time":"2023-12-11T12:48:13+00:00","remoteAddr":"192.168.0.1","user":"j.....","app":"no app in context","method":"DELETE","url":"/remote.php/dav/calendars/j...../rapladhbw-karlsruhede-1/","message":"Using where() on non-empty WHERE part, pleaseverify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first.","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0","version":"28.0.0.10","exception":{"Exception":"Doctrine\\DBAL\\Query\\QueryException","Message":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first.","Code":0,"Trace":[{"file":"/srv/www/example.daomain/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php","line":2604,"function":"where","class":"OC\\DB\\QueryBuilder\\QueryBuilder","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/lib/public/AppFramework/Db/TTransactional.php","line":63,"function":"OCA\\DAV\\CalDAV\\{closure}","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->","args":["*** sensitive parameters replaced ***"]},{"file":"/srv/www/example.daomain/www/nextcloud/apps/dav/lib/CalDAV/CalDavBackend.php","line":2584,"function":"atomic","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/dav/lib/CalDAV/Subscriptions/Subscription.php","line":92,"function":"deleteSubscription","class":"OCA\\DAV\\CalDAV\\CalDavBackend","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Tree.php","line":185,"function":"delete","class":"Sabre\\CalDAV\\Subscriptions\\Subscription","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/CorePlugin.php","line":281,"function":"delete","class":"Sabre\\DAV\\Tree","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/event/lib/WildcardEmitterTrait.php","line":89,"function":"httpDelete","class":"Sabre\\DAV\\CorePlugin","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":472,"function":"emit","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":253,"function":"invokeMethod","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/3rdparty/sabre/dav/lib/DAV/Server.php","line":321,"function":"start","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/apps/dav/lib/Server.php","line":370,"function":"exec","class":"Sabre\\DAV\\Server","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/apps/dav/appinfo/v2/remote.php","line":35,"function":"exec","class":"OCA\\DAV\\Server","type":"->"},{"file":"/srv/www/example.daomain/www/nextcloud/remote.php","line":172,"args":["/srv/www/example.daomain/www/nextcloud/apps/dav/appinfo/v2/remote.php"],"function":"require_once"}],"File":"/srv/www/example.daomain/www/nextcloud/lib/private/DB/QueryBuilder/QueryBuilder.php","Line":869,"message":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first.","exception":{},"CustomMessage":"Using where() on non-empty WHERE part, please verify it is intentional to not call andWhere() or orWhere() instead. Otherwise consider creating a new query builder object or call resetQueryPart('where') first."}}
{"reqId":"rk9Hex6BwGCD67IPBKMz","level":0,"time":"2023-12-11T12:48:13+00:00","remoteAddr":"192.168.0.1","user":"j.....","app":"dav","method":"DELETE","url":"/remote.php/dav/calendars/j...../rapladhbw-karlsruhede-1/","message":"Removing refresh webcal job for subscription 49","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0","version":"28.0.0.10","data":{"app":"dav"}}
{"reqId":"rk9Hex6BwGCD67IPBKMz","level":0,"time":"2023-12-11T12:48:13+00:00","remoteAddr":"192.168.0.1","user":"j.....","app":"dav","method":"DELETE","url":"/remote.php/dav/calendars/j...../rapladhbw-karlsruhede-1/","message":"Cleaning all reminders for subscription 49","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0","version":"28.0.0.10","data":{"app":"dav"}}

adding a calendar

{"reqId":"EwoycRjx7YZGRnqmruKD","level":0,"time":"2023-12-11T12:51:17+00:00","remoteAddr":"192.168.0.1","user":"j....","app":"dav","method":"MKCOL","url":"/remote.php/dav/calendars/j..../rapladhbw-karlsruhede-1","message":"Refreshing webcal data for subscription 51","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0","version":"28.0.0.10","data":{"app":"dav"}}
{"reqId":"EwoycRjx7YZGRnqmruKD","level":0,"time":"2023-12-11T12:51:19+00:00","remoteAddr":"192.168.0.1","user":"j....","app":"dav","method":"MKCOL","url":"/remote.php/dav/calendars/j..../rapladhbw-karlsruhede-1","message":"Scheduling webcal data refreshment for subscription 51","userAgent":"Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0","version":"28.0.0.10","data":{"app":"dav"}}

Jürgen

[miaulalala]

So the warnings were removed, that's good. Since there is no other error message, can you please check your database?

SELECT * FROM oc_calendarsubscriptions where id = 51;