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', '732da3f81b9f25d361976faa9db9629d', '3.144.102.239', '1713589213', '1713589213', '/shop_content.php?coID=2&XTCsid=42f56783889520011baaa0c109b43aca')

[XT SQL Error]