Fatal error: Uncaught Error: Class "OCA\Photos\Sabre\CollectionPhoto" not found in /var/www/html/nextcloud/apps/photos/lib/Sabre/Place/PlacePhoto.php:22 Stack trace: #0 {main} thrown in /var/www/html/nextcloud/apps/photos/lib/Sabre/Place/PlacePhoto.php on line 22