How to verify my game files?

In Steam:

1. Select your game
2. Click on the “Settings” gear in the upper corner under the game banner
3. Click on “Properties”

4. In “Installed files”, select “Verify game files”.

It may take some time as Steam checks all your game files to see if they’re complete. If they aren’t, it will ask you to download the missing files again, which will take a bit more time.

The process should be similar in Ubisoft Connect and other platforms. Unfortunately, I’m not able to guide you through them since I only own the Steam version of the game.