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', '7d7d33d11699fddaa9a54d4e6b4f8508', '216.73.216.150', '1762386041', '1762386041', '/product_info.php/language/de/info/p3991_North-America-Relief-Map.html')

[XT SQL Error]