Leibherr side by side fridge/fridge freezer

Question

Our side by side was noisy from the start, it sounded as though there was a high wind blowing in the kitchen? Now the small fridge ( over the freezer) has stopped completely along with the ice maker (in the freezer below)?

The other large fridge is always frosted up on it's back wall.

Any idea's experts?

Tanks
Nicki Evans