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', '27bd3df271105a03f087d2c9ac6c612c', '3.138.118.250', '1714083644', '1714083644', '/password_double_opt.php?XTCsid=556213bd995aa263df7318e539f41bde')

[XT SQL Error]