Why does Prabhupada say that God has no names?

From Ravikant Jagtap

Krishna no name, but by His qualities we give Him names. If a man is very beautiful, we call him “beautiful.” If a man is very intelligent, we call him “wise.’ So the name is given according to the quality. Because God is all-attractive, the name Krishna can be applied only to Him. Krishna means “all-attractive.” It includes everything

And in lectures he says gods original name is Krishna how to understand this contradiction? What do we actually mean when we say lords name is eternal?