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', '6f03c7c54fd2604453628dca453a3574', '3.144.48.135', '1714059582', '1714059582', '/products_new.php?XTCsid=556213bd995aa263df7318e539f41bde')

[XT SQL Error]