In the case of "Pauls Social Club", my tool show's a Circuit registered AED located at the nearby playground (blue circle), but not one mapped in OSM on the club building (red circle): https://osm.mathmos.net/defib/progress/IP/#18/52.04612/1.13942

From the description in the Circuit (click on the blue circle on the map) it would appear that this is a separate location to the AED mapped in OSM.

But the Circuit entries are registered by someone looking after each AED, so they almost certainly exist somewhere on the ground, although the locations can be a bit off. So if there isn't a second AED at the play area, it's likely the Circuit entry is the one at "Pauls Social Club", and who-ever registered it accepted an auto-generated description without checking it was accurate.