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', 'f1470d5232b4062d2fb6d1f5dbf1bf30', '216.73.216.8', '1757829520', '1757829520', '/product_info.php/language/de/info/p1811_Cape-Verde-6-Satellitenbild.html')

[XT SQL Error]