A couple of days ago I was able to play on all of the multiplayer servers that I had but, what I believe was June 18th, I have not been able to connect since then. Each time I closed and installed Minecraft many times as well as shutting down and restarting my pc but the same problem arose. Each time it gave me the same error that is in the image. I truly do not know what the problem is, and I would like some help so I can continue playing with my friends