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', 'de3b6d548e239d28cf7652a6752a20f7', '18.220.187.178', '1714109661', '1714109661', '/product_info.php/info/p2990_Belgien-Reliefkarte.html')

[XT SQL Error]