Fatal error: Uncaught Error: Class "ilSelectedItemsBlockGUI" not found in /var/www/html/ilias/components/ILIAS/Dashboard/Favourites/classes/class.ilFavouritesListGUI.php:21 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Dashboard/Favourites/classes/class.ilFavouritesListGUI.php on line 21