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', '7c8190e3526069f4968c5e2f2877bef0', '3.145.36.10', '1713910931', '1713910931', '/shopping_cart.php?XTCsid=7449276e387898a36bd6271988bac6c7')

[XT SQL Error]