Fatal error: Uncaught Error: Class "ilHtmlPurifierAbstractLibWrapper" not found in /var/www/html/ilias/components/ILIAS/LegalDocuments/classes/HTMLPurifier.php:28 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/LegalDocuments/classes/HTMLPurifier.php on line 28