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', 'lj4ue0o3093kcf9d6do6gmd3q6', '18.227.48.131', '1713436943', '1713436943', '/login.php?XTCsid=lj4ue0o3093kcf9d6do6gmd3q6')

[XT SQL Error]