Does not work with Yosemite

I’m unable to make it working in OS X 10.10 Yosemite, I can preview the screensaver but when I press ESC the whole computer hangs and needs hard reset. After reboot app does not start automatically. Needs fixing. In overall screensaver seems OK.

Slajerek about Clear Day™: Screensaver (Screen Saver), v1.0.4