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', 'hihimb8d4je1etgpgthfm0scj1', '18.206.76.160', '1711728071', '1711728071', '/login.php?XTCsid=hihimb8d4je1etgpgthfm0scj1')

[XT SQL Error]