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', '76a3ef489aa905ed5ba62ee41d1bb393', '3.133.159.224', '1713543947', '1713543947', '/shop_content.php?coID=2')

[XT SQL Error]