Fatal error: Uncaught TypeError: spl_autoload_register(): Argument #1 ($callback) must be a valid callback or null, class "HTMLPurifierExtras" not found in /home/apolo/public_html/qua_sgdpr/vendor/ezyang/htmlpurifier/extras/HTMLPurifierExtras.autoload.php:14 Stack trace: #0 /home/apolo/public_html/qua_sgdpr/vendor/ezyang/htmlpurifier/extras/HTMLPurifierExtras.autoload.php(14): spl_autoload_register(Array) #1 {main} thrown in /home/apolo/public_html/qua_sgdpr/vendor/ezyang/htmlpurifier/extras/HTMLPurifierExtras.autoload.php on line 14