My minecraft world got corrupted

I was roaming in the nether mining nether quartz to gain xp when minecraft started crashing. I opened my world again and everytime I opened it, it crashed after a minute or two and now it doesn't even open so I made a new world with the same seed to see what was the problem and when I got into the nether I find out that the layout of the nether has changed. I could see that I spawned on the same location because some things were same but this time I was spawned into a warped forest instead of nether waste. I think this is probably the reason my world crashes. Please fix it in the next update.Seed: -1623127471