Fatal error: Uncaught Error: Class 'HTMLPurifier_AttrTransform' not found in C:\laragon\www\test\vendor\ezyang\htmlpurifier\library\HTMLPurifier\AttrTransform\ImgRequired.php:11 Stack trace: #0 {main} thrown in C:\laragon\www\test\vendor\ezyang\htmlpurifier\library\HTMLPurifier\AttrTransform\ImgRequired.php on line 11