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', 'ddfa83094c0bb23fb1e1b3fb1a7ab247', '216.73.216.116', '1752279656', '1752279656', '/product_info.php/language/de/info/p2854_Australia-Relief-Map.html')

[XT SQL Error]