Fatal error: Uncaught Error: Class "OCA\Photos\Sabre\Album\AlbumRoot" not found in /home/tzuovhm/tzuovhm/apps_/photos/lib/Sabre/Album/SharedAlbumRoot.php:19 Stack trace: #0 {main} thrown in /home/tzuovhm/tzuovhm/apps_/photos/lib/Sabre/Album/SharedAlbumRoot.php on line 19