Hello,
I've recently installed Itchio on a new computer and put the folder with my games in it, with the same path as it used to have, the problem is that the games wouldn't launch, so I decided to delete the games and the folder it was in, made a new one and now itchio still says that those games are installed and doesn't let me re-download them (as for some reason those games when hitting download the file to download does not appear) nor "uninstall" them.