Fatal error: Uncaught Error: Interface "ILIAS\Setup\Agent" not found in /var/www/html/ilias/components/ILIAS/DataCollection/classes/Setup/class.ilDataCollectionSetupAgent.php:28 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/DataCollection/classes/Setup/class.ilDataCollectionSetupAgent.php on line 28