School Admission Assistant

Database Error; SQL: SELECT DISTINCT `t`.* FROM `wp_posts` AS `t` WHERE ( ( `course_name_related`.`post_title` like "%%" ) AND ( `t`.`post_type` = "course" ) AND ( `t`.`post_status` IN ( "publish" ) ) ) ORDER BY `t`.`menu_order`, `t`.`post_title`, `t`.`post_date` LIMIT 0, 2; Response: Unknown column 'course_name_related.post_title' in 'where clause'