select distinct wr_parent from g4_write_sp_18_7 where ((INSTR(LOWER(wr_subject%7C%7Cwr_content%7C%7Cwr_4), LOWER('%BC%EE%C7%CE%B8%F4'))) ) and (wr_num between '-125' and '9875')

1054 : Unknown column '7C' in 'where clause'

error file : /bbs/board.php