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', 'c62c9e11369ca41c0942211db07b9da2', '3.144.42.196', '1713284337', '1713284337', '/checkout_shipping.php?XTCsid=a451af72c17a970910eac808a75b0ae1')

[XT SQL Error]