เกิดข้อผิดพลาด: SQLSTATE[HY000] [2002] No connection could be made because the target machine actively refused it (Connection: default, SQL: select `questions`.`id`, `questions`.`question_text`, `questions`.`question_type`, `questions`.`use_in_evaluation`, `questions`.`parent_id`, `questions`.`choices`, `questions`.`sort_order`, `question_groups`.`name` as `group_name`, `parent`.`question_text` as `parent_text` from `questions` left join `question_groups` on `questions`.`question_group_id` = `question_groups`.`id` left join `questions` as `parent` on `questions`.`parent_id` = `parent`.`id` order by `question_groups`.`name` asc, `questions`.`sort_order` asc)