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', 'ph2485n9e0c1dk55i0tu55cjo2', '18.191.216.163', '1713505150', '1713505150', '/login.php?XTCsid=ph2485n9e0c1dk55i0tu55cjo2')

[XT SQL Error]