Can't install Soldner-X 2. It says I need 3000KB more space...I have 100GB.

I've tried uninstalling and reinstalling; same message comes up. The game seems like it's installed; the icon to play it is in my Games folder and it plays the game music when I move to it. But when I select it, it gives me this message:

"There is not enough free space on the system storage. The game was forced to quit: At least 3000KB more free space is needed."

I have 100 GB free. Anyone?
Much appreciated.