On the Ground News App, go to settings > manage subscription > restore purchase.

If you originally purchased your subscription on the Ground News website, please sign into the app with the same account that you purchased your subscription with.

On the Ground News website: Please sign in with the same account credentials that you initially subscribed with. Please keep in mind that if you signed up for your subscription via a Social log in method, you will need to sign in again using the same method.

If these tips don't resolve the problem, please contact subscriptions@ground.news.