Fatal error: Uncaught Error: Class 'HTMLPurifier_AttrDef_HTML_Nmtokens' not found in E:\Cloud\OneDrive\ITBX\GIT\API\vendor\ezyang\htmlpurifier\library\HTMLPurifier\AttrDef\HTML\Class.php:6 Stack trace: #0 {main} thrown in E:\Cloud\OneDrive\ITBX\GIT\API\vendor\ezyang\htmlpurifier\library\HTMLPurifier\AttrDef\HTML\Class.php on line 6