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', '831622b6b0c4eb7e61d3e4d56f7254e3', '216.73.216.113', '1764281832', '1764281832', '/product_info.php/info/p3104_Argentinien-Reliefkarte.html')

[XT SQL Error]