Fatal error: Uncaught Error: Class "ILIAS\ResourceStorage\Identification\AbstractIdentification" not found in /var/www/html/ilias/components/ILIAS/ResourceStorage/src/Identification/ResourceCollectionIdentification.php:30 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/ResourceStorage/src/Identification/ResourceCollectionIdentification.php on line 30