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', '6ca25d75ee9110420dbb0f5bcd10e5b1', '216.73.216.115', '1761498778', '1761498778', '/product_info.php/info/p1613_Austria-Satellite-Image.html')

[XT SQL Error]