Fatal error: Declaration of mtekk\adminKit\setting\setting_int::jsonSerialize(): int must be compatible with mtekk\adminKit\setting\setting_base::jsonSerialize(): mtekk\adminKit\setting\mixed in /homepages/35/d356077299/htdocs/wp-content/plugins/wp-lynx/includes/adminKit/setting/class-mtekk_adminkit_setting_int.php on line 53