The game uses PyInstaller, which Windows Defender loathes, so it might be trying to stop it from running. There are instructions on the game page to whitelist it, so you can see if that helps. It's also possible other antivirus software could cause problems as well.
If that doesn't help, I'm not sure what the issue could be, although it's worth mentioning the game has only been tested on Windows 10 on relatively modern hardware.