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', '8e1e6d1ca3b9ce8a127235a711b2d758', '3.141.244.201', '1713960014', '1713960014', '/product_info.php/language/en/info/p2600_Groenland-Reliefkarte.html')

[XT SQL Error]