Constant Crashes on Yosemite

This app worked successfully when using Mavericks, but I have been using Yosemite for the past two months and since then this does not work at all. It will open fine and I can edit the layout of whatever picture I chose, however, once I click Save and Apply! the app crashes. Every. Single. Time. Am hoping for Yosemite support soon.

IAGolfer about Multi Monitor Wallpaper