I spent a long time working on a survival solo world. I logged in Minecraft and didn't realize I was playing a snapshot. When I loaded in, I lost my achievements. I looked around, and there were chunks randomly generating. The world was corrupted. It says, chunk error, should be at (z) (y) (x), relocating chunks in the log. Is there any way to recover my work? Or can I bring back Windows to yesterday's state? If you know how to help me, please. I really really need help.