The Youtube app gets renewed alot, The mede8er doesn't support it anymore.
But there is a alternative, please read below.
If you want to watch youtube video’s please follow these steps:
1. Go the internet
2. Choose internet again in the bottom right.
3. Here you will see multiple applications, One is named Video Search XL
4. With Video Search XL you can stream youtube video’s. But this app will only work with the mede8er Key or a mouse and keyboard