I don't speak German, but I'm going to guess you're asking about why the wallet won't sync?

What you need to do is go to your Roaming AppData folder (by typing %APPDATA% into the address bar in any folder window), find the "litedoge" folder, and create a file "litedoge.conf" in it. Add these lines to it using any text editor:

addnode=45.56.117.191
addnode=212.71.254.189

Save it, and restart the wallet. It should sync fine after this.