Crash

Put the summary of the bug you're having here

What I expected to happen was...:
The game to start and I could join my world i just created

What actually happened was...:
I opened Minecraft after not playing it for like a year. Wanted to play offline because none of my friends play. So I opened it. Saw this error "socketexception unrecognized windows sockets error 10106 create"
So it just said i could play offline. I pressed play and then created a world. After pressing it it crashes and comes to the error message.
I am a user from beta. So I don't have a email I only have a username. You can reach me on my email. Sebbethebeast4@gmail.com

Steps to Reproduce:
1. Open minecraft
2. Get message saying you can only play offline.
3. Press play.
4. Press create singleplayer world
5. Try to play the world.
6. Minecraft crash
7. Error message