A Database Error Occurred

Error Number: 1055

Expression #1 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'coho59_newrcmy.c.content_id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

SELECT * FROM content c left join menu m on m.menu_id = c.menu_id WHERE c.menu_id in (368,370,372,138,346,334,378) AND content_status = 'Active' AND c.category = 'product' GROUP BY c.menu_id ORDER BY menu_sortnumber ASC LIMIT 0,20