Fatal error: Uncaught Error: Interface "ILIAS\MetaData\Vocabularies\Standard\Assignment\AssignmentsInterface" not found in /var/www/html/ilias/components/ILIAS/MetaData/classes/Vocabularies/Standard/Assignment/NullAssignments.php:25 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/MetaData/classes/Vocabularies/Standard/Assignment/NullAssignments.php on line 25