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', 'gi44gb1fr0kjs4roant5i1a0v4', '18.217.84.171', '1714023632', '1714023632', '/login.php?XTCsid=gi44gb1fr0kjs4roant5i1a0v4')

[XT SQL Error]