You can connect to the Minehut lobby by adding the IP minehut.com (1.8-1.16.2) to your server list, to create a server simply type /create in game to get started.
Unfortunately, Minehut does not have a system in place for this yet. A method you can use is /find (a user from the server) and it hopefully will display the server you were on.
We're sorry for the inconveniences and hope to not have these issues again, like said above doing /save-all will maintain the progress of your server and prevent data loss from occurring.