insert g4_board_good set bo_table = 'specialsale', wr_id = '40', mb_id = '', bg_flag = 'good', bg_datetime = '2020-02-20 00:04:02', guest_ip = '18.206.194.161'

1062 : Duplicate entry 'specialsale-40-' for key 'fkey1'

error file : /bbs/good_guest.php