If your app is not authorized to access certain features of your phone, such as the internet or phone Contacts, you are advised to follow these troubleshooting steps:
1. Go to [Settings]-[Apps & notifications]-[App permissions], check it according to the app type or permission, and tap an app to modify its permissions.
2. If the problem remains unresolved, update your software to the latest version and retry.
3. If the problem still persists, contact OnePlus Customer Service for assistance.