crashes after after login and before playing

Put the summary of the bug you're having here

What I expected to happen was...after pressing play it doesn't start but crashes:
Describe what you thought should happen here. I should start playing like it does on the mac that we have.

What actually happened was...:
Describe what happened here

Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. .load the launcher
screen appears that it crashed...
3. ...