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', 'a7af7d04aa2fad91cc8a1a88c5f28961', '3.145.105.105', '1714152939', '1714152939', '/checkout_shipping.php?XTCsid=7593f4da55114442760e17ad10225a85')

[XT SQL Error]