게시판 그룹 등록이 안돼요

insert into g4_group set gr_id = 'YD', gr_subject = 'YD', gr_admin = 'admin', gr_use_access = '', gr_1_subj = '', gr_2_subj = '', gr_3_subj = '', gr_4_subj = '', gr_5_subj = '', gr_6_subj = '', gr_7_subj = '', gr_8_subj = '', gr_9_subj = '', gr_10_subj = '', gr_1 = '', gr_2 = '', gr_3 = '', gr_4 = '', gr_5 = '', gr_6 = '', gr_7 = '', gr_8 = '', gr_9 = '', gr_10 = ''

1366 : Incorrect integer value: '' for column 'gr_use_access' at row 1

error file : /gnuboard4/adm/boardgroup_form_update.php

이렇게 뜨는데 boardgroup_form_update.php파일을 제가 만진적이 없어서요~

어떻게 해야할까용...