Today I logged out of my server to go design a street lamp in my creative testing world. When I came back my entire world had been replaced with a new world. I had nothing and the seed was not the same. I went to the coordinates of my base just to check and confirmed it was not my world. I checked to make sure I had the right server address, and to my disappointment, I did. I went to my server on minehut and went to the backups place. I went back to the last save, and it was in the new world. Is there anyway I can get my server back? Is this a new 1.17 bug? any help is appreciated and please say so if you have similar issues because if this is some sort of bug or glitch it needs to be fixed. Thanks!
Edit: I did /worlds and it says twobrosmp (what I changed the name of my world to) did not exist. The twobrosmp nether and end also didn't exist.