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', '3f221314e646da7a533bdce0fe32b1f3', '216.73.216.13', '1752539444', '1752539444', '/product_info.php/language/de/info/p3125_Angola-Relief-Map.html')

[XT SQL Error]