Ring on Homepod not working
# Bug Report

### Describe the Bug
I get the error Message „process couldn‘t be completed“ when i enable or disable the new „ring on homepod“ feature on iOS14. 

### To Reproduce
Steps to reproduce the behavior:
 - Start Home App
 - Open Ring Camera Settings
 - Open Notifications
 - Activate „Ring on Homepod“

### Expected behavior
Homepod rings when doorbell button os pressed


### Screenshots/Logs
![A8CD834B-C201-437F-BE01-64781142CA08](https://user-images.githubusercontent.com/30244171/93571990-811fa700-f995-11ea-8384-3889e97319f8.png)


### Additional context

### Homebridge Ring Config
Post homebridge-ring platform config  _without sensitive information_
```
        {
            "refreshToken": "xxx",
            "hideDoorbellSwitch": false,
            "platform": "Ring"
        }
```

### Environment
![6194F740-ADE1-4F7D-89DB-B2A15BDD0E41](https://user-images.githubusercontent.com/30244171/93571972-79f89900-f995-11ea-89b4-5d7424f0d4ee.jpeg)



