Unable to answer "Where is this defibrillator located?" – house number 45 - outside: Defibrillator – https://osm.org/node/6765894498 via StreetComplete 56.1:

An anderer Stelle. Bürgerhalle außen.
Hauptstraße 35

Attached photo(s):
https://westnordost.de/p/195892.jpg