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', 'raeepbh3tkn8csmo97esmf0t37', '54.144.95.36', '1711621139', '1711621139', '/login.php?XTCsid=raeepbh3tkn8csmo97esmf0t37')

[XT SQL Error]