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', '9ff357d101dc80f95a44ca8df26b5708', '18.226.251.68', '1713568478', '1713568478', '/product_info.php/language/de/info/p2757_Guinea-Bissau-Reliefkarte.html')

[XT SQL Error]