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', 'c6fd9c96d1ed34ef719bf61e01d6e8b1', '216.73.216.145', '1761030693', '1761030693', '/product_info.php/language/en/info/p1571_Deutschland-Satellitenbild.html')

[XT SQL Error]