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', '2a90bf43a40be2b5213064eee8f0664f', '3.131.110.169', '1714063130', '1714063130', '/checkout_shipping.php?XTCsid=816effff2570c607585d0dd8551d2406')

[XT SQL Error]