Forza horizon 5 premium not working

I brought Forza horizon 5 premium pack and installed in it on my xbox series s. But, I see only basic horizon 5 game but other packs are not installing or showing. When I try they say 'error in installation and try after some time'. I also don't see any event or race on map inside the game. So does it mean I paid huge money just for roaming on road.

:)