Fatal error: Uncaught Error: Class "ILIAS\UI\Implementation\Component\Table\AbstractTable" not found in /var/www/html/ilias/components/ILIAS/UI/src/Implementation/Component/Table/Ordering.php:29 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/UI/src/Implementation/Component/Table/Ordering.php on line 29