I was playing in my survival world yesterday and it's ok, but today I logged in to that world and there is some massive hole in the ground all the way to bedrock. All stuff's in chest was missing, pets died, and my base disappeared. I tried going in the nether, travel 1k blocks than come back, restart computer, copy world and it didn't work. Pls help me. There are 2 holes, 1 is on my base and 1 is on a completely random place.