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', '94b49e7eb1477b5db44d7d2f162995da', '3.138.33.87', '1713619995', '1713619995', '/shopping_cart.php?XTCsid=5e10770c3e5d1353aa8ec3f7bd33fee6')

[XT SQL Error]