Fatal error: Uncaught Error: Interface "ilPDSelectedItemsBlockConstants" not found in /var/www/html/ilias/components/ILIAS/Dashboard/ItemsBlock/classes/class.ilPDSelectedItemsBlockViewSettings.php:24 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Dashboard/ItemsBlock/classes/class.ilPDSelectedItemsBlockViewSettings.php on line 24