Sorry, I don't understand what is happening. Are you on phone or computer? If on computer, have you unzipped the folder before trying to run the html? What do you mean "open the download location"?
I'm sorry, I forgot to delete it.
I suddenly had two downloads in the Itch.io app and when I wanted to start the game, the place where I installed it opened and let me choose between the older and the new version but without a game exe or something like that.
I deleted the old version data and could play again.
However I think I have it twice in the libary. I think it was true when they said the itch.io is kinda broken.
However it feels better to download what I can this way.
Did this made it clearer?