Fatal error: Uncaught Error: Class "HTMLPurifier_AttrTransform" not found in C:\xampp\htdocs\new\OUTREACH-main (4)\OUTREACH-main\vendor\ezyang\htmlpurifier\library\HTMLPurifier\AttrTransform\TargetBlank.php:10 Stack trace: #0 {main} thrown in C:\xampp\htdocs\new\OUTREACH-main (4)\OUTREACH-main\vendor\ezyang\htmlpurifier\library\HTMLPurifier\AttrTransform\TargetBlank.php on line 10