No worries if you can't access Premium features. Simply follow these steps to resolve this issue:
1) Check your Internet connection and try closing the app completely (swipe the app up and off the screen), then reopen.
2) Make sure your subscription hasn't expired. Go to the Google Play Store > verify you’re signed in to the correct Google Account > Menu > Subscriptions > choose the app and check the status.
Hope it helps and you'll enjoy Premium features to the fullest. If you keep having this issue, feel free to email us at email@example.com.