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', 'fdmr2v7f090p3bj5sl4t270i26', '3.137.221.163', '1714053270', '1714053270', '/login.php?XTCsid=fdmr2v7f090p3bj5sl4t270i26')

[XT SQL Error]