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', 'qo62lsjh8cc72eaapbu5fapf07', '3.21.100.34', '1714130746', '1714130746', '/login.php?XTCsid=qo62lsjh8cc72eaapbu5fapf07')

[XT SQL Error]