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', 'e50142bbcd73683cc178a08c7ab7be80', '18.119.213.235', '1713511903', '1713511903', '/checkout_shipping.php?XTCsid=2c82651c29181c0e0b67329d45f74355')

[XT SQL Error]