If you want to start a new world but you don't want to wipe away your settings you spent so long tweaking and perfecting, you can easily do so in our file manager.
1. Open the File Manager
2. Navigate to /saves/
3. Delete all of the files in this folder. If you'd like to backup your previous world, download these files or move them somewhere else.
4. Restart the server and a new world will be generated.