Fatal error: Uncaught Error: Class "HTMLPurifier_DefinitionCache" not found in /home/php8crons/public_html/xpert/includes/selling-partner-api-main/vendor/ezyang/htmlpurifier/library/HTMLPurifier/DefinitionCache/Serializer.php:3 Stack trace: #0 {main} thrown in /home/php8crons/public_html/xpert/includes/selling-partner-api-main/vendor/ezyang/htmlpurifier/library/HTMLPurifier/DefinitionCache/Serializer.php on line 3