What version do you have? If it is v3, it is that you can only enter your Gamejolt account, but the page where this version of the game was kept has already been removed, so entering is no longer valid.
And to play you only have to select one of the files, make sure you do not have a save file somewhere in the folder, This version of the game is very old and the save does not work.
Well, the Game is Saved for you when you leave a toad House or the Switch Palace and when you finish a Haunted House Level or a Fort. and don't worry about that, my english is not very good either. x'D
If that is the most complete version but arrangements are still being made in that version, such as the same thing that you just said, it does not save the Game well, but I was able to solve it and I will soon release a version with that problem already solved and many more improvements
