1366 - Incorrect integer value: '' for column `usr_web74_1`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', '33mh21djdafbk747k378terc95', '3.16.161.16', '1746998778', '1746998778', '/shop_content.php?XTCsid=cc5fcd24242c566bda768bce6bf8c8fe&coID=7')

[XT SQL Error]