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', 'd3dc5724bab2689cfb6b174df57678c6', '216.73.216.3', '1764342134', '1764342134', '/product_info.php/info/p1667_Guinea-Bissau-Satellitenbild.html')

[XT SQL Error]