Fatal error: Uncaught Error: Interface "ILIAS\EmployeeTalk\Metadata\MetadataHandlerInterface" not found in /var/www/html/ilias/components/ILIAS/EmployeeTalk/classes/Metadata/MetadataHandler.php:23 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/EmployeeTalk/classes/Metadata/MetadataHandler.php on line 23