Describe the bug
After updating Nextcloud to 33.0.2, the Files app no longer displays folder contents. All folders show the error message: "This folder is unavailable, please try again later or contact the administration." Disabling the Deck app immediately resolves the issue and folders are displayed normally again.
The server log shows that multiple Deck Cron classes no longer exist, suggesting a broken or incomplete app package:
OCA\Deck\Cron\ScheduledNotificationsOCA\Deck\Cron\CardDescriptionActivityOCA\Deck\Cron\SessionsCleanupOCA\Deck\Cron\DeleteCron
To Reproduce
- Update Nextcloud to 33.0.2
- Have the Deck app enabled
- Go to the Files app
- See error: "This folder is unavailable, please try again later or contact the administration"
- Disable the Deck app → folders work again immediately
Expected behavior
Folders in the Files app should display their contents normally regardless of whether the Deck app is enabled.
Screenshots
Client details:
- OS: Windows 11
- Browser: Chrome 147
- Device: desktop
Server details
Operating system: Ubuntu
Web server: Nginx
Database: MariaDB 10.11
PHP version: 8.3
Nextcloud version: 33.0.2
Where did you install Nextcloud from: LAMP Stack
Signing status:
List of activated apps:
Activity 6.0.0, Antivirus for files 6.2.0, Brute-force settings 6.0.0, Calendar 6.2.2, Client Push 1.3.1, Collaborative tags 1.23.0, Collectives 4.2.0, Comments 1.23.0, Contacts 8.4.3, Contacts Interaction 1.14.1, Custom CSS 1.20.0, Dashboard 7.13.0, Default Encryption Module 2.21.0, Deleted files 1.23.0, Diagramming 4.2.3, Federation 1.23.0, File access control 4.0.0, File reminders 1.6.0, File sharing 1.25.2, Files download limit 5.1.0, First run wizard 6.0.0, Forms 5.2.6, Log Reader 6.0.0, Mail 5.7.7, Monitoring 5.0.0, Nextcloud Webhook Support 1.5.0, Nextcloud announcements 5.0.0, Notes 4.13.1, Notifications 6.0.0, ONLYOFFICE 10.0.0, PDF viewer 6.0.0, Password policy 5.0.0, Passwords 2026.3.21, Photos 6.0.0, Polls 8.6.3, Privacy 5.0.0, Recommendations 6.0.0, Related Resources 4.0.0, Share by mail 1.23.0, Support 5.0.0, Talk 23.0.3, Teams 33.0.0, Text 7.0.0, Two-Factor TOTP Provider 15.0.0, Update notification 1.23.0, Usage survey 5.0.0, User status 1.13.0, Versions 1.26.0, Weather status 1.13.0
Nextcloud configuration:
Are you using an external user-backend, if yes which one: No
Logs
Nextcloud log (data/nextcloud.log)
{"reqId":"***","level":2,"time":"2026-04-09T17:20:01+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"failed to create instance of background job: OCA\Deck\Cron\ScheduledNotifications","version":"33.0.2.2","exception":{"Exception":"OC\AppFramework\Utility\QueryNotFoundException","Message":"Could not resolve OCA\Deck\Cron\ScheduledNotifications! Class "OCA\Deck\Cron\ScheduledNotifications" does not exist"}}
{"reqId":"***","level":2,"time":"2026-04-09T17:20:01+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"failed to create instance of background job: OCA\Deck\Cron\CardDescriptionActivity","version":"33.0.2.2","exception":{"Exception":"OC\AppFramework\Utility\QueryNotFoundException","Message":"Could not resolve OCA\Deck\Cron\CardDescriptionActivity! Class "OCA\Deck\Cron\CardDescriptionActivity" does not exist"}}
{"reqId":"***","level":2,"time":"2026-04-09T17:20:01+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"failed to create instance of background job: OCA\Deck\Cron\SessionsCleanup","version":"33.0.2.2","exception":{"Exception":"OC\AppFramework\Utility\QueryNotFoundException","Message":"Could not resolve OCA\Deck\Cron\SessionsCleanup! Class "OCA\Deck\Cron\SessionsCleanup" does not exist"}}
{"reqId":"***","level":2,"time":"2026-04-10T03:00:01+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"failed to create instance of background job: OCA\Deck\Cron\DeleteCron","version":"33.0.2.2","exception":{"Exception":"OC\AppFramework\Utility\QueryNotFoundException","Message":"Could not resolve OCA\Deck\Cron\DeleteCron! Class "OCA\Deck\Cron\DeleteCron" does not exist"}}
Browser log
Describe the bug
After updating Nextcloud to 33.0.2, the Files app no longer displays folder contents. All folders show the error message: "This folder is unavailable, please try again later or contact the administration." Disabling the Deck app immediately resolves the issue and folders are displayed normally again.
The server log shows that multiple Deck Cron classes no longer exist, suggesting a broken or incomplete app package:
OCA\Deck\Cron\ScheduledNotificationsOCA\Deck\Cron\CardDescriptionActivityOCA\Deck\Cron\SessionsCleanupOCA\Deck\Cron\DeleteCronTo Reproduce
Expected behavior
Folders in the Files app should display their contents normally regardless of whether the Deck app is enabled.
Screenshots
Client details:
Server details
Operating system: Ubuntu
Web server: Nginx
Database: MariaDB 10.11
PHP version: 8.3
Nextcloud version: 33.0.2
Where did you install Nextcloud from: LAMP Stack
Signing status:
List of activated apps:
Activity 6.0.0, Antivirus for files 6.2.0, Brute-force settings 6.0.0, Calendar 6.2.2, Client Push 1.3.1, Collaborative tags 1.23.0, Collectives 4.2.0, Comments 1.23.0, Contacts 8.4.3, Contacts Interaction 1.14.1, Custom CSS 1.20.0, Dashboard 7.13.0, Default Encryption Module 2.21.0, Deleted files 1.23.0, Diagramming 4.2.3, Federation 1.23.0, File access control 4.0.0, File reminders 1.6.0, File sharing 1.25.2, Files download limit 5.1.0, First run wizard 6.0.0, Forms 5.2.6, Log Reader 6.0.0, Mail 5.7.7, Monitoring 5.0.0, Nextcloud Webhook Support 1.5.0, Nextcloud announcements 5.0.0, Notes 4.13.1, Notifications 6.0.0, ONLYOFFICE 10.0.0, PDF viewer 6.0.0, Password policy 5.0.0, Passwords 2026.3.21, Photos 6.0.0, Polls 8.6.3, Privacy 5.0.0, Recommendations 6.0.0, Related Resources 4.0.0, Share by mail 1.23.0, Support 5.0.0, Talk 23.0.3, Teams 33.0.0, Text 7.0.0, Two-Factor TOTP Provider 15.0.0, Update notification 1.23.0, Usage survey 5.0.0, User status 1.13.0, Versions 1.26.0, Weather status 1.13.0
Nextcloud configuration:
Are you using an external user-backend, if yes which one: No
Logs
Nextcloud log (data/nextcloud.log)
{"reqId":"***","level":2,"time":"2026-04-09T17:20:01+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"failed to create instance of background job: OCA\Deck\Cron\ScheduledNotifications","version":"33.0.2.2","exception":{"Exception":"OC\AppFramework\Utility\QueryNotFoundException","Message":"Could not resolve OCA\Deck\Cron\ScheduledNotifications! Class "OCA\Deck\Cron\ScheduledNotifications" does not exist"}}
{"reqId":"***","level":2,"time":"2026-04-09T17:20:01+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"failed to create instance of background job: OCA\Deck\Cron\CardDescriptionActivity","version":"33.0.2.2","exception":{"Exception":"OC\AppFramework\Utility\QueryNotFoundException","Message":"Could not resolve OCA\Deck\Cron\CardDescriptionActivity! Class "OCA\Deck\Cron\CardDescriptionActivity" does not exist"}}
{"reqId":"***","level":2,"time":"2026-04-09T17:20:01+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"failed to create instance of background job: OCA\Deck\Cron\SessionsCleanup","version":"33.0.2.2","exception":{"Exception":"OC\AppFramework\Utility\QueryNotFoundException","Message":"Could not resolve OCA\Deck\Cron\SessionsCleanup! Class "OCA\Deck\Cron\SessionsCleanup" does not exist"}}
{"reqId":"***","level":2,"time":"2026-04-10T03:00:01+00:00","remoteAddr":"","user":"--","app":"cron","method":"","url":"--","message":"failed to create instance of background job: OCA\Deck\Cron\DeleteCron","version":"33.0.2.2","exception":{"Exception":"OC\AppFramework\Utility\QueryNotFoundException","Message":"Could not resolve OCA\Deck\Cron\DeleteCron! Class "OCA\Deck\Cron\DeleteCron" does not exist"}}
Browser log