1366 - Incorrect integer value: '' for column `shop_db3`.`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', 'c3f456786d2aa475e6e67c751e364e7c', '54.197.64.207', '1711623092', '1711623092', '/product_info.php?language=en&info=p248_Memory-Of-Spain.html&XTCsid=18ef4d570fc05d4799b5475265fad7ac')

[XT SQL Error]