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', 'b9ef1f8c9c929e7b7bbda3af9d748aec', '216.73.216.116', '1752305655', '1752305655', '/product_info.php/info/p1515_Alaska-Satellite-Image.html')

[XT SQL Error]