1366 - Incorrect integer value: '' for column `mapshopatlogis`.`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', 'd119aeded60f189b17a83f96649900d7', '216.73.216.3', '1766128106', '1766128106', '/shop_content.php/coID/25')

[XT SQL Error]