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', 'c2gsgh11sdtmo9b31qarue7ds5', '18.191.254.0', '1713559617', '1713559617', '/login.php?XTCsid=c2gsgh11sdtmo9b31qarue7ds5')

[XT SQL Error]