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', 'a15dd8d34e86634922893cd6bbcbe5c5', '216.73.216.3', '1767369195', '1767369195', '/product_info.php/language/en/info/p3981_Europe-Satellite-Image.html')

[XT SQL Error]