Fatal error: Uncaught Error: Class 'HTMLPurifier_Lexer' not found in C:\web\qhzyy\vendor\ezyang\htmlpurifier\library\HTMLPurifier\Lexer\DOMLex.php:27 Stack trace: #0 {main} thrown in C:\web\qhzyy\vendor\ezyang\htmlpurifier\library\HTMLPurifier\Lexer\DOMLex.php on line 27