Fatal error: Uncaught Error: Interface "ILIAS\UI\Component\Table\DataRetrieval" not found in /var/www/html/ilias/components/ILIAS/Export/classes/ExportHandler/I/Table/DataRetrieval/HandlerInterface.php:28 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Export/classes/ExportHandler/I/Table/DataRetrieval/HandlerInterface.php on line 28