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', '490d461c34f87e9080b6369d88e8062b', '216.73.216.108', '1763357679', '1763357679', '/product_info.php/info/p3980_Africa-Satellite-Image.html')

[XT SQL Error]