I can't play on any of my worlds. Possibly something to do with updating screen events?

For a while now, I have been playing only single-player worlds. More recently, I have been having problems with all of my worlds. I first noticed it when I went on one of my favorite creative worlds. I get on just like I always do, but when I select one of my worlds and click to play it, It starts loading, but almost immediately kicks me off to the Crash Report page on the launcher. I read through that, and it seems to have something to do with updating screen events. I am still fairly new to PC Minecraft, and just would like to be able to play these worlds again. If this problem has already been mentioned, I am very sorry for your inconvenience, and only wish to find a solution. Thank you!

What I expected to happen was...:
I was going to play my creative/survival worlds on single-player for a while.

What actually happened was...:
My game crashed and Crash Report says something to the effect of Updating Screen Events.

Steps to Reproduce:
1. Log on to Minecraft
2. Select 'Singleplayer'
3. Select one of the available worlds (for me, it doesn't matter creative or survival, none work currently.)
4. You will, if experiencing the same thing, be kicked out to the Crash Report page, with description reading Updating Screen Events. Also says something like failed to create a child event loop.

If someone could help me resolve this issue, I would be extremely grateful. As I said, I have not been playing for long, not even a year yet, and am just wishing to figure this out. Deepest apologies if this issue has been mentioned before, but I honestly just wish for a resolution. Thank you once again.