Is not Working!!

I am a huge fan of images and I was looking for a good wallpaper manager, and I found only a couple of them that I liked. This one looks very good but is not actually working. And I even paid the $5 unlimited downloads but when I quit the application and relaunch it shows that I only have five downloads. Also I never couldnt get to work. no wallpaper can be displayer. fix this guys. you can do alot with this app

sergioortiz007 about Wallble - HD Wallpapers for Desktop, v1.3.8