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', 'fae220569f07003d667c24e9da7ae01c', '216.73.216.148', '1755540627', '1755540627', '/shop_content.php?coID=7')

[XT SQL Error]