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', '40f770ff748d6a93343d707597ef8e6f', '3.85.241.10', '1711709083', '1711709083', '/shop_content.php?coID=7')

[XT SQL Error]