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', 'ufhu0nf5psv3vadgv8mdlu1sf1', '18.227.190.93', '1714066204', '1714066204', '/login.php?XTCsid=ufhu0nf5psv3vadgv8mdlu1sf1')

[XT SQL Error]