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', 'ilv6qgahqc48bskvl1sacsj3a1', '3.22.240.205', '1713424361', '1713424361', '/login.php?XTCsid=ilv6qgahqc48bskvl1sacsj3a1')

[XT SQL Error]