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', '1552a21b7ff18a8b9cd6def7b41ade3c', '216.73.216.109', '1765627913', '1765627913', '/product_info.php/language/en/info/p436_3D-Satellitenbild-Konfigurator.html')

[XT SQL Error]