@gema in case someone else has the same issue, I solved it:
uninstall the game
then go to the store and look for the tittle
open it and install it from there.
And it works.

I have AC Valhalla and I was paying it on the XBOX. I have the series X now and the game doesn’t update.
Every time it says installation stop.
I have uninstalled it, I have reset the console, I have power cycle it, I have done everything.
I have re install the game offline, otherwise I won’t be able to install it again and I keep having the same issue.
My internet works fine, so I don’t know what else to do. I basically bought a game that I can’t play, as I can’t not even use it anymore without the update, as it doesn’t launch because it need it.