1366 - Incorrect integer value: '' for column `creatihu_shop`.`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', '470ea24eae975949cb1372a19897919e', '18.216.32.116', '1713996656', '1713996656', '/product_info.php?info=p325_.html')

[XT SQL Error]