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', '7d181f3ec3ee36a9ca45155313309fb0', '216.73.216.3', '1767313367', '1767313367', '/product_info.php?info=p3175_Malaysia-Reliefkarte.html')

[XT SQL Error]