Fatal error: Uncaught Error: Class "HTMLPurifier_Strategy" not found in /mnt/disk1/hosted/cuadro_mando/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Strategy/ValidateAttributes.php:7 Stack trace: #0 {main} thrown in /mnt/disk1/hosted/cuadro_mando/vendor/ezyang/htmlpurifier/library/HTMLPurifier/Strategy/ValidateAttributes.php on line 7