Getting error about key servers in ubuntu 20.04

Executing: /tmp/apt-key-gpghome.VRFcYdP1qS/ --keyserver --recv-keys ED444FF07D8D0BF6
gpg: keyserver receive failed: No name

This is the error what i get while installing katoolin in ubuntu 20.04.
How can i resolve this??

No real clu about this, but a quick search got me to this.

Maybe that helps…