Fatal error: Uncaught Error: Class "HTMLPurifier_ChildDef" not found in /home/oyaagyug/public_html/vendor/ezyang/htmlpurifier/library/HTMLPurifier/ChildDef/List.php:12 Stack trace: #0 {main} thrown in /home/oyaagyug/public_html/vendor/ezyang/htmlpurifier/library/HTMLPurifier/ChildDef/List.php on line 12