Minehut tweeted and made an announcement on discord, but currently minehut is at their server limit, go around and get to know new people make some friends.
Minehut has increased in Growth for the first time in a while (I think) the servers are at it's limits, go around in new servers get to know some people.
I recommend resetting the world and make sure it isn't a flat world then upload your seed and restart. if that doesn't work upload the seed and the reset the world all thought I don't think this second option will work It's worth a shot
When you upload a world you can restart, and do /worlds the name will show up. If it's crashing when you click on the world saying Illegal Characters try deleting the world and rename the folder from your end of the computer and the folder inside of the .ZIP