11-26 21:55:54.076  27959-28296/com.vukee.photobook D/Photo2Fun-ImageDownloader﹕ error occurred
    org.simpleframework.xml.stream.NodeException: Document has no root element
            at org.simpleframework.xml.stream.NodeReader.readRoot(NodeReader.java:88)
            at org.simpleframework.xml.stream.NodeBuilder.read(NodeBuilder.java:84)
            at org.simpleframework.xml.stream.NodeBuilder.read(NodeBuilder.java:71)
            at org.simpleframework.xml.core.Persister.read(Persister.java:562)
            at org.simpleframework.xml.core.Persister.read(Persister.java:499)
            at org.simpleframework.xml.core.Persister.read(Persister.java:408)
            at de.fotokasten.fun.backend.P2FNetworkServiceFacade.montageImageUrl(P2FNetworkServiceFacade.java:173)
            at de.fotokasten.fun.ui.MakeMontageActivity$ImageDownloader.doInBackground(MakeMontageActivity.java:190)
            at de.fotokasten.fun.ui.MakeMontageActivity$ImageDownloader.doInBackground(MakeMontageActivity.java:178)
            at android.os.AsyncTask$2.call(AsyncTask.java:287)
            at java.util.concurrent.FutureTask.run(FutureTask.java:234)
            at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
            at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1080)
            at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:573)
            at java.lang.Thread.run(Thread.java:841)