Fatal error: Uncaught Error: Interface "ILIAS\ResourceStorage\Collection\Repository\CollectionRepository" not found in /var/www/html/ilias/components/ILIAS/ResourceStorage/classes/CollectionDBRepository.php:37 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/ResourceStorage/classes/CollectionDBRepository.php on line 37