If you have accidentally deleted your contacts, or lost your phone, if you have them backed up in your Storage, you can restore them easily using Storapp.

To do so:

1. Tap open Storapp.
2. Go to the [Settings] tab.
3. Look for the [Contacts] setting and tap [Restore Contact].
4. Click [OK] on the message prompt.
5. Choose and tap on the contact backup file that you wish to restore.