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', '59j029doio8ntfc74vne0iti76', '18.220.160.216', '1713883116', '1713883116', '/login.php?XTCsid=59j029doio8ntfc74vne0iti76')

[XT SQL Error]