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', '8fabd2qsaclbarqm88e3pkci95', '52.14.126.74', '1713551633', '1713551633', '/login.php?XTCsid=8fabd2qsaclbarqm88e3pkci95')

[XT SQL Error]