SELECT a.gr_id, a.gr_subject, a.gr_2, a.gr_use_access, b.mb_id FROM g4_group AS a LEFT JOIN g4_group_member AS b ON a.gr_id = b.gr_id WHERE (b.mb_id = '' AND a.gr_use_access = '1' ) OR a.gr_use_access = '0' and a.gr_id not in ('׷̵', 'zadm_200', 'zadm_700', 'zadm_800','guest') and a.gr_id not like 'cafe%' ORDER BY a.gr_1

1271 : Illegal mix of collations for operation ' IN '

error file : /bbs/member_list.php