Fatal error: Uncaught Error: Class 'HTMLPurifier_Lexer' not found in /var/www/html/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Lexer/DOMLex.php:27 Stack trace: #0 {main} thrown in /var/www/html/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Lexer/DOMLex.php on line 27