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', 'fo3p6ihpqrsqt9u3j9bag60al3', '23.20.220.59', '1710826559', '1710826559', '/shop_content.php/coID/7/content/Contact')

[XT SQL Error]