MySQL Query Error: INSERT INTO b_posting_email (POSTING_ID, STATUS, EMAIL, SUBSCRIPTION_ID, USER_ID) SELECT PG.POSTING_ID, 'Y', U.EMAIL, NULL, MIN(U.ID) FROM b_posting_group PG INNER JOIN b_user_group UG ON UG.GROUP_ID = PG.GROUP_ID INNER JOIN b_user U ON U.ID = UG.USER_ID WHERE PG.POSTING_ID = 10423 and (UG.DATE_ACTIVE_FROM is null or UG.DATE_ACTIVE_FROM <= now()) and (UG.DATE_ACTIVE_TO is null or UG.DATE_ACTIVE_TO >= now()) and U.ACTIVE = 'Y' and U.EMAIL not in (SELECT EMAIL FROM b_posting_email WHERE POSTING_ID = 10423) GROUP BY PG.POSTING_ID, U.EMAIL [Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=']

DB query error.
Please try later.