https://www.openstreetmap.org/way/888475590/history
There does not seem to be a sign for housenumber 4 on Mapillary for this building. Is it on the shop entrance, signs, or cards?
You could alternatively ask the staff and add
source:housenumber=local knowledge

Source: Mapillary
https://www.mapillary.com/app/?focus=photo&pKey=722354960056789