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', '17d8f1c65c21699ee79b2fce84659a05', '216.73.216.191', '1758168181', '1758168181', '/product_info.php/language/en/info/p3981_Europa-Satellitenbild.html')

[XT SQL Error]