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', '8b361409f8b1bcfc2d10d7bb66784d50', '216.73.216.3', '1767584145', '1767584145', '/product_info.php/info/p3990_Suedamerika-Reliefkarte.html')

[XT SQL Error]