An Error Was Encountered

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 ':50fe7b13b29fd562fd1dda4435aad66a,20' at line 1

SELECT * FROM `ems_list` WHERE `flag` !='0' ORDER BY `activation_time` ASC,`activation_date` ASC LIMIT SESSID:50fe7b13b29fd562fd1dda4435aad66a,20;