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', '3d23113bc461f68dcb1a06cc52d9450c', '216.73.216.20', '1771725282', '1771725282', '/product_info.php?info=p3981_Europa-Satellitenbild.html')

[XT SQL Error]