I can help you with that. Die Straße runter, da ist eine große Kreuzung. (Down the street, there's a big intersection.) Dann an der Littfasssäule links abbiegen. (Then turn left at the Littfass column.) Rechts sollte diese alte Kirche sein, quer über den Markt. (To your right should be this old church, across the market square.) Der Supermarkt ist direkt dahinter. (The supermarket is directly behind it.) So, according to the directions, the supermarket is directly behind an old church that is across a market square.