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', '9cbba17fb50d3a4ebab6b7534c2c8fbc', '216.73.216.109', '1765721160', '1765721160', '/product_info.php/info/p2917_Kenia-Reliefkarte.html')

[XT SQL Error]