As mentioned by other posters, the team’s identified the problem and is working on a patch for it at the moment. We don’t have an exact ETA on when it’s going to be released but it should resolve itself for most players with a machine that meets the system requirements.
Please note that if you do not meet requirements, the patch for this will NOT fix your crashing error. It is also only to address the crashes which occur before the game client launches at all. If you see the client launch (even with a black screen), you are having a different issue and would need to troubleshoot that instead.
Edited: Had the wrong link for the system requirements, sorry about that!