A Database Error Occurred

Error Number: 1055

Expression #45 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'eatlapps_newdb.customer_review.Id' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by

SELECT * FROM (`application`) LEFT JOIN `customer_review` ON `customer_review`.`A_id` = `application`.`code` WHERE `application`.`P_id` = 2 AND `application`.`status` = 1 AND `application`.`Price` = 0 GROUP BY `application`.`Code` ORDER BY `customer_review`.`Rating` desc LIMIT 6

Filename: /home/eatlappscp/public_html/models/apps_new_model.php

Line Number: 763