A Database Error Occurred

Error Number: 1064

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '-20, 10' at line 11

SELECT `promotion`.*, `th_promotion_title`.`text_content` as promotion_title, `th_promotion_description`.`text_content` as promotion_description, `th_promotion_keyword`.`text_content` as promotion_keyword, `th_promotion_titlebar`.`text_content` as promotion_titlebar, `th_promotion_detail`.`text_content` as promotion_detail FROM (`promotion`) JOIN `text_th` th_promotion_title ON `th_promotion_title`.`text_id`=`promotion_title` JOIN `text_th` th_promotion_description ON `th_promotion_description`.`text_id`=`promotion_description` JOIN `text_th` th_promotion_keyword ON `th_promotion_keyword`.`text_id`=`promotion_keyword` JOIN `text_th` th_promotion_titlebar ON `th_promotion_titlebar`.`text_id`=`promotion_titlebar` JOIN `text_th` th_promotion_detail ON `th_promotion_detail`.`text_id`=`promotion_detail` WHERE `promotion_type` = 2 AND `promotion_status` = 'enable' ORDER BY `promotion_id` desc LIMIT -20, 10