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', 'n90nbondt4sbqrlag8fgjffk65', '3.133.154.106', '1713417421', '1713417421', '/login.php?XTCsid=n90nbondt4sbqrlag8fgjffk65')

[XT SQL Error]