Fatal error: Uncaught Error: Class "OCP\BackgroundJob\QueuedJob" not found in /home/tzuovhm/tzuovhm/nextcloud/lib/private/Repair/Owncloud/CleanPreviewsBackgroundJob.php:21 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/nextcloud/lib/private/Repair/Owncloud/CleanPreviewsBackgroundJob.php on line 21