1366 - Incorrect integer value: '' for column `artcom-ug`.`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', '5ktcp99svccgt6kfqjscbk2r10', '18.119.137.2', '1718734643', '1718734643', '/shopping_cart.php?cat=c652_%D0%9A%D0%B0%D1%80%D1%82%D1%80%D0%B8%D0%B4%D0%B6%D0%B8%20%D0%BA%20%D1%81%D1%82%D1%80%D1%83%D0%B9%D0%BD%D1%8B%D0%BC%20%D0%BF%D1%80%D0%B8%D0%BD%D1%82%D0%B5%D1%80%D0%B0%D0%BC%20Epson.html&page=2&stock=inventory&view=list')

[XT SQL Error]