Fatal error: Uncaught Error: Interface "ILIAS\Notifications\Repository\ilNotificationOSDRepositoryInterface" not found in /var/www/html/ilias/components/ILIAS/Notifications/classes/Repository/ilNotificationOSDRepository.php:36 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Notifications/classes/Repository/ilNotificationOSDRepository.php on line 36