Error during install and renewal failure

@bmw, Hmm. Maybe we should back up a bit.
You may have noticed that title of my original post includes the phrase “Error during install”.
When I originally installed certbot, the installation failed toward the end. I posted a question here about it, but I don’t think that I ever got an answer. You can find it here: New install: Wrong document root. Perhaps a peek at that might yield something useful.

As to having another file using WUI_ENV, no, I don’t. That is currently the only Apache virtual host on that Ubuntu host.