Are other people also encountering login errors?

Well, I found that the original author Cuong Le committed some changes and uploaded the sources for version 0.0.8 beta in his git repository at https://gitorious.org/dropn9. Unfortunately, I did not find the .deb anywhere on the net.
After compiling with QtCreator and installing, I can login and access my files once again.

I attach the .deb to this post. (In case the original author complains, I will remove it of course.) To install it you will require devel-su and have to remove the previous version beforehand.