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', 'a34ogg5g9qlt4ej36o5h3209o7', '54.224.100.102', '1711713635', '1711713635', '/login.php?XTCsid=a34ogg5g9qlt4ej36o5h3209o7')

[XT SQL Error]