Fatal error: Uncaught Error: Class "HTMLPurifier_AttrTransform" not found in /var/www/html/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/NameSync.php:8
Stack trace:
#0 {main}
thrown in /var/www/html/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrTransform/NameSync.php on line 8