This is 11 according to cadaster and 11A is for a building in the inner courtyard North. But Mapillary from 2020 and Aug 2022 does indeed show an address plaque for 11A here. [1] No idea what to do here. Any change to address will be overwritten by the address bot anyway.

[1] https://www.mapillary.com/app/?pKey=734179257661972&focus=photo