The Smallest Black Hole

There must be a paradox if we consider black hole as singularity in space-time! Indeed, if all black hole mass is concentrated in one point (the alleged singularity) and its horizon consists in a sphere of radius R, then by definition of the black hole there must be no energy at all between the singularity and its horizon - for any energy inside the horizon must be absorbed by the so-called singularity! - this sphere must be absolutely empty. The question then is, by which means this singularity does communicate with the rest of the universe? It simply can’t! Unless we accept that the horizon of the black hole is exactly its surface, so the black hole can’t be a singularity but a macroscopic object .