Fatal error: Uncaught Error: Class 'HTMLPurifier_ChildDef' not found in /home/marshalltowncsd/sites/marshalltown.k12.ia.us/releases/20230829083101/web/app/plugins/safe-svg/vendor/ezyang/htmlpurifier/library/HTMLPurifier/ChildDef/List.php:12 Stack trace: #0 {main} thrown in /home/marshalltowncsd/sites/marshalltown.k12.ia.us/releases/20230829083101/web/app/plugins/safe-svg/vendor/ezyang/htmlpurifier/library/HTMLPurifier/ChildDef/List.php on line 12