As a quick fix I would recommend is downloading the game from the site instead than using the app! If you do that you should find a folder that, once unzipped, presents the .exe and 2 folders (picture below):
In the meantime me and one of the progs are trying to wrap our head around what happens when using the itch.io app- it's the first time we're hearing of something like this, so we're sorry for the inconvenience!