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', '9840b7c23309dbc6cd0bb7a14051e9c8', '3.21.97.61', '1713991854', '1713991854', '/product_info.php/info/p3166_Iceland-Relief-Map.html')

[XT SQL Error]