When I try to start the game there2s obvious a game update but also some kind of DirectX update, which not could be instlled. The only option I get was to quit the game. Pls - what's going on, how can I continue play the game?

Sign In - Ubisoft Support
Sign in to your Uplay account to manage your account and support cases.
Unable to play the game with DirectX12 ? | Forums
Hello everyone,
I am creating this sticky post to help players who are unable to use DIrectX12 when playing the game.
For most of these players the game will run correctly if you use DIrectX11.
If you you are experiencing issues with DirectX12 crashes, or the game not launching at all, there are some things you can do to fix this -
Occasionally your Windows 10 OS will not update its DirectX versions automatically and you will have to force an update your self.
Troubleshooting technical issues on PC
Troubleshooting technical issues on PC
devtrackers.gg