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', 'f6c74829eb89e00548bd9e94022f2385', '18.117.73.214', '1713529723', '1713529723', '/shopping_cart.php?XTCsid=2e913f95d614b725a3e8a823e845d351')

[XT SQL Error]