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', '5qpkd6msls47udtadrlnhgij85', '3.14.246.254', '1714162054', '1714162054', '/login.php?XTCsid=5qpkd6msls47udtadrlnhgij85')

[XT SQL Error]