Fatal error: Uncaught Error: Class "HTMLPurifier_AttrTransform" not found in /var/www/html/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/SafeParam.php:15
Stack trace:
#0 {main}
thrown in /var/www/html/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/SafeParam.php on line 15