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', 'abdlqont6i9l2pvprk59u1fu92', '18.117.216.229', '1714049169', '1714049169', '/login.php?XTCsid=abdlqont6i9l2pvprk59u1fu92')

[XT SQL Error]