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', '1e183ba51996c33b85b2212a6b9bf89d', '3.15.156.140', '1714063957', '1714063957', '/shop_content.php?coID=8&XTCsid=9905f496dafd7c1604ee1758883b5a9f')

[XT SQL Error]