i Have this error while deleting spam member, how to solve the problem
A Database Error Occurred
Error Number: 1140
Mixing of GROUP columns (MIN(),MAX(),COUNT(),...) with no GROUP columns is illegal if there is no GROUP BY clause
SELECT count(*) as count, `recipient_id` FROM (`exp_message_copies`) WHERE `message_read` = 'n' AND `sender_id` IN ('401', '399', '400', '398', '396', '397')
Filename: models/member_model.php
Line Number: 595