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', '2ff4077f3d702cf8f7295cf0712e277b', '216.73.216.8', '1758004033', '1758004033', '/index.php/cat/c7_3D-Landschafts-Modelle.html')

[XT SQL Error]