Cannot play any Single-Player or Multiplayer Server Maps, only Menu screen, game will crash

Put the summary of the bug you're having here

I play 1.7.9 (my server runs off 1.7.9) and 1.8.7
I should be able to get in on 1.7.9, and Single-Player Maps without an issue

Instead, the game crashes anytime I try to join any map or server

Steps to Reproduce:
1. Open Minecraft
2. Open any Single-player map or multiplayer server