Fatal error: Uncaught Error: Interface "ilSplitButtonMenuItem" not found in /var/www/html/ilias/components/ILIAS/UIComponent/SplitButton/interfaces/interface.ilSplitButtonSeparatorMenuItem.php:23 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/UIComponent/SplitButton/interfaces/interface.ilSplitButtonSeparatorMenuItem.php on line 23