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', '25e0e3b95a48a9771b8887a4cf47fad2', '3.138.34.158', '1713527765', '1713527765', '/shopping_cart.php?XTCsid=41d98929aac05a618616c6b9cf3dbbec')

[XT SQL Error]