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', '3ca88bfc02d4c4ec3e6c4e50b61f9188', '216.73.216.8', '1757969147', '1757969147', '/product_info.php/info/p1607_Eritrea-Satellitenbild.html')

[XT SQL Error]