Hy guys!

I have an annoying issue on my page.
I ve installed CB, but I cant upload any profile images.. I can use gallery images, but when I want to upload an image from my folders, there will be no change. If I try this from kuena there are two options.. 1. is that I can update my profile, 2. is that I can update my image. If I take the first one, nothing happens, and the image doesnt changes... If I take the second option, then I have an error message: 404 Not Found nginx/1.4.1

Please help me out!