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', 'e1a86f72cacb59da607fa492013f3bc7', '3.146.255.127', '1713593373', '1713593373', '/shopping_cart.php?XTCsid=34eb3af5dd83507b4e3d18340087e638')

[XT SQL Error]