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', 'd00d7f9c072118e96ce20e78ce6f4ac8', '216.73.216.3', '1767491451', '1767491451', '/product_info.php?info=p1754_Sao-Tome-Satellitenbild.html')

[XT SQL Error]