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', '11eb7cqs7i8s97ndqq6aelbav5', '3.14.133.148', '1713500808', '1713500808', '/login.php?XTCsid=11eb7cqs7i8s97ndqq6aelbav5')

[XT SQL Error]