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', 'cb210316d574757e1b5505893f766a7e', '3.144.251.72', '1713305018', '1713305018', '/shop_content.php?coID=2&XTCsid=1ac6c2897c9e1517fbc2b6cff40eabd3')

[XT SQL Error]