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', 'd7063f52fae42fff9d75de090cd35d25', '216.73.216.3', '1767313464', '1767313464', '/product_info.php?info=p3068_Solomon-Ins--9-Reliefkarte.html')

[XT SQL Error]