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', '770fd9815c54d7bcd369f5510ae2854c', '3.14.70.203', '1713240144', '1713240144', '/account_edit.php')

[XT SQL Error]