:/ Someone else has had the same issue and hasn't been able to resolve it, but try any of the following:
- redownloading the archive. Make sure the download finishes and don't close the browser tab until it has.
- upacking it with 7zip instead.
- repairing the archive with WinRar or 7zip.
- temporarily turning off your malware defender.
If none of this works for you, maybe you can play it on a different device if you have one available?