I claimed a piece of land and then I went out of minecraft to do something. I logged back on and now everything is gone. I don't understand why. Can someone please tell me why?
Did you log back into the same server you built it on? Builds don't stay the same across different Survival servers. For example, if you built something on server 1 then logged into server 2, the build from server 1 would be on server 1, not server 2.
Is everything in your inventory in the same place? And did you spawn in the same location. If they are its the issue Almighty and Pars are talking about, otherwise its a personal rollback.