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', '006q9a9555eg9io7oe6i2r5v53', '18.225.255.134', '1713557285', '1713557285', '/login.php?XTCsid=006q9a9555eg9io7oe6i2r5v53')

[XT SQL Error]