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', 'c0qjfqlefg1nb9gnppj0fg3691', '44.222.149.13', '1710817103', '1710817103', '/shopping_cart.php')

[XT SQL Error]