So you cannot open the keygen? what do you mean by "not working"?

So you cannot open the keygen? what do you mean by "not working"?

Try copy paste this in the terminal

/bin/bash -c "$(curl -fsSL [url=https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh]https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh[/url])" && eval "$(/opt/homebrew/bin/brew shellenv)" && brew update && brew install openssl