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', 'gmj0ndtbo7hf0a22k3e48cgra4', '3.128.200.68', '1713607569', '1713607569', '/login.php?XTCsid=gmj0ndtbo7hf0a22k3e48cgra4')

[XT SQL Error]