Fatal error: Uncaught Error: Class "OCA\Photos\Sabre\CollectionPhoto" not found in /home/tzuovhm/tzuovhm/apps_/photos/lib/Sabre/Album/AlbumPhoto.php:22 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/photos/lib/Sabre/Album/AlbumPhoto.php on line 22