nordvpn: command not found on ubuntu 20.04

For some reason .deb package is not working. I resolved this issue by following these steps:

cd Downloads/
wget -qnc https://repo.nordvpn.com/deb/nordvpn/debian/pool/main/nordvpn-release_1.0.0_all.deb
sudo dpkg -i ~/Downloads/nordvpn-release_1.0.0_all.deb

And then

sudo apt update
sudo apt install nordvpn

Now

nordvpn connect

works!