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', 'f66f3c83c6a6819574628daf10c9f12b', '216.73.216.8', '1757794195', '1757794195', '/shop_content.php/language/en/coID/8')

[XT SQL Error]