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