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', 'ruer4g3f8oh4nr3ebntp51rqb1', '18.190.153.51', '1713492973', '1713492973', '/login.php?XTCsid=ruer4g3f8oh4nr3ebntp51rqb1')

[XT SQL Error]