Fatal error: Uncaught Error: Class "OCP\BackgroundJob\QueuedJob" not found in /home/tzuovhm/tzuovhm/apps/theming/lib/Jobs/RestoreBackgroundImageColor.php:24 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps/theming/lib/Jobs/RestoreBackgroundImageColor.php on line 24