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', '229b0d93113e5bd5054d9f81fdffed1b', '216.73.216.110', '1768428288', '1768428288', '/product_info.php/language/en/info/p4019_3D-Reliefkarten-Konfigurator.html')

[XT SQL Error]