Dear Davide,
thak you for asking this question. I'm Bernd, working for Caritas Migrant Coucelling Services.
If you have received the decision already 6 weeks ago, I would advise you to contact Ausländeramt at Landratsamt to "remind" them regarding the court ruling, at least thats what I normally do in such cases. Sometimes the office clerks are sick or overworked. A small, friendly reminder might help to speed up the process.
If you have further questions, feel free to ask again.
Greetings,
Bernd