Again don't quote me on this but I think that downloading/uploading files in game are sort of broken right now, or that's how it seems for me at least.
Don't quote me on this but i believe that with the new update servers automatically restart when considered inactive, and will give you a 60 minute warning after being up for at least 2 hours.
well if the world folder is in your minehut server, you could rename it to the correct name, but are you saying that when you changed it back to world it reset? cause normally that doesn't happen
uhh staff cant unban you from a minehut server, but if you're banned from minehut itself i recommend you make an appeal using this format and post it here.
its on the latest version (1.15.2) but they use ProtocolSupport so you are able to join on any version between 1.4.7-1.15.2 although i don't recommend it lol