He has set traps around the targets that Kelvin is likely to go after, such as the Patriarch and the members of his cabal. But those aren't working anymore, so he wants to create something else that can draw Kelvin out of his hiding place.
Now that he has drawn the attention of Manhattan, who happens to be the strongest demigod on Earth-11, he has to be careful not to show his face.
He can fight demigods as a mortal. He can even kill demigods. But Manhattan could do that too as a mortal.
Now that Manhattan is a demigod, his power is through the roof. Manhattan has actually destroyed a planet before. So he must not have a fight with Manhattan at all.
He sighed and said, "Look at how low I have fallen. I have been scared into hiding by a junior."
"It is my fault, though. I guess it is another repercussion of my foolish decision."