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', 'nep5vrmem6bvb0l7p0sm707g86', '44.198.180.108', '1711723148', '1711723148', '/login.php?XTCsid=nep5vrmem6bvb0l7p0sm707g86')

[XT SQL Error]