Fatal error: Uncaught Error: Class 'HTMLPurifier_HTMLModule' not found in D:\www\api\vendor\ezyang\htmlpurifier\library\HTMLPurifier\HTMLModule\Iframe.php:10 Stack trace: #0 {main} thrown in D:\www\api\vendor\ezyang\htmlpurifier\library\HTMLPurifier\HTMLModule\Iframe.php on line 10