No worries if you can't access Premium features. Simply follow these steps to resolve this issue:
- Check your Internet connection.
- Make sure your subscription hasn't expired. Tap device Settings > iTunes & App Store > Apple ID > view Apple ID > Subscriptions > choose the app and check the status.
- Restore purchases with the same Apple ID you used to make a purchase. Tap Menu > Settings > Restore purchases.
Hope it helps and you'll enjoy Premium features to the fullest. If you keep having this issue, feel free to email us at firstname.lastname@example.org.