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', 'e87c8f6ded3d668ee7a38c741a60a45d', '216.73.216.3', '1767297370', '1767297370', '/product_info.php?info=p3051_Solomon-Ins--6-Reliefkarte.html')

[XT SQL Error]