I'm sorry for the trouble! Do you have any virus scanners or firewall stuff on your computer? It says the game loader isn't there and we have heard of that happening by a computer thinking it's unsafe. It's a false flag, though. Some programs just think Python, our programing language, is suspicious. Seeing if you can temporarily turn scanners off or telling it to trust the file might help.
It's also possible something just went strange with the install and uninstalling/reinstalling will fix it.
Your save data won't go away even if you uninstall unless you seek it out and delete it, totally refresh your computer back to prior state from before you played, or have a crash that causes file memory loss. Let me know if any of that helps or not!