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', 'ed8e5399ncolskr228g66kmd07', '3.16.66.206', '1713937708', '1713937708', '/product_info.php/info/p164_.html')

[XT SQL Error]