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', '38526aaf2f1e82bd5a641fd1557bccd5', '216.73.216.3', '1767602658', '1767602658', '/product_info.php?info=p1828_Fiji-5-Satellitenbild.html')

[XT SQL Error]