Fatal error: Uncaught Error: Class "HTMLPurifier_AttrDef" not found in /var/www/html/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Composite.php:12
Stack trace:
#0 {main}
thrown in /var/www/html/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Composite.php on line 12