1366 - Incorrect integer value: '' for column `pella-ware`.`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', '3uo3o7gcrq53jcaik8ro69o1v4', '3.147.42.168', '1714126285', '1714126285', '/login.php?XTCsid=3uo3o7gcrq53jcaik8ro69o1v4')

[XT SQL Error]