Once again the game is crashing on Windows it was updated a couple of days ago 
If Zwift is crashing there’s a lot of things that can cause it, the most common are out of date drivers, or out of date operating system. I’d also suggest making sure that there aren’t any other programs running, just to narrow the possibilities.
If after doing those things, its still crashing, you can send your crash logs in an email to support@zwift.com and our tech support agents can take a look. If you need help generating those logs this Support Article has the steps.