Problem with the timezone configuration.

Hi there !

I've this retunr when I start the bot (new and clean setup) : 

```
[INFO] Checking configurations...
[ERROR] Unknown type: timezone
[ERROR] Unknown type: timezone
```

but here is what i have in my configuration about the Timezone :

`  "timezone": "Europe/Berlin",`

Has anyone ever encountered this problem?


thank you in advance for your feedback