1366 - Incorrect integer value: '' for column `shop_db3`.`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', 'abef82b0321fa99ecd877df8835995bc', '18.223.32.230', '1713269533', '1713269533', '/product_info.php?info=p255_Andr--Carol---Silhouetten.html&XTCsid=cb0ad84d7acc90898c9ea3492fbc1557')

[XT SQL Error]