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', '7eff41382d3b26ccb031d0859dc873b6', '216.73.216.3', '1767616188', '1767616188', '/product_info.php?info=p1749_Solomon-Ins--7-Satellitenbild.html')

[XT SQL Error]