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', '4bbac845d8b111d35544aa5794ff5565', '216.73.216.143', '1762555468', '1762555468', '/product_info.php/info/p2846_Satellitenbild-Poster-Konfigurator.html?refID=2')

[XT SQL Error]