UFC 4

Today i purchased a disc for my playstation 5. The game was UFC 4 and it was meant for ps4. As i know PS4 games work on PS5 aswell. I downloaded the game and its stuck on the loading screen with the 2 circles spinning. I waited for an hour nothing has happend. When i disconnect from my ethernet it works but im offline. When i turn my ethernet on the game gets stuck. I tried everything but nothing happend.

Tried Restarting the PS5

Tried Reinstalling the Game.