Fatal error: Uncaught Error: Class "ILIAS\UI\Implementation\Component\Symbol\Icon\Icon" not found in /var/www/html/ilias/components/ILIAS/UI/src/Implementation/Component/Symbol/Icon/Standard.php:25 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/UI/src/Implementation/Component/Symbol/Icon/Standard.php on line 25