PLEX DVR cannot find my HDHR device

I would be glad to but at the moment I’m waiting to hear back about what I’d been directed to do in this thread: Plex Will No Longer Add HDHomeRun as DVR

It was suggested to repair the database only I’m stuck at the step of re-importing the SQL to the new database. From what I read, I’m worried that if I try loading Plex that it will bork my setup completely.