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', 'd505ba3ea56a88d3a95874b705f8c6b0', '216.73.216.20', '1771733306', '1771733306', '/product_info.php/info/p1649_Switzerland-Satellite-Image.html')

[XT SQL Error]