1366 - Incorrect integer value: '' for column `db162720`.`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', 'v6gia7ubmqt16uuel455joj1f3', '3.236.221.156', '1656577144', '1656577144', '/login.php')

[XT SQL Error]