Could you share a screenshot and/or the error message?
I have no idea how you tried to install it, it’s an UserScript, you install an UserScript loader, and it installs it and runs it for you.
I updated the post to make it clearer.
I have no idea how you tried to install it, it’s an UserScript, you install an UserScript loader, and it installs it and runs it for you.
I updated the post to make it clearer.