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', 'dp7pskbcurp1o7rfclv12uiff5', '3.136.97.64', '1713310516', '1713310516', '/login.php?XTCsid=dp7pskbcurp1o7rfclv12uiff5')

[XT SQL Error]