I want to completely clear my Library and start over

[David_Snyder]

These steps should work:

Unable to connect to Roon Server after upgrade

Yeah. The other possibility is that your Roon database has some kind of corruption that is preventing Roon Server from starting. The solution for that is to shutdown Roon Server, move the database folder out of the way, and then restart it. This article describes where to find the database folder: If that works, you can try restoring one of your database backups. If you’ve not been running Roon for long, it may be easier to just let it re-analyze your music collection and start fresh. The g…

Basically, shutdown Roon Server via the web UI, rename your database folder by accessing your Nucleus from a Windows PC or Mac, and then start it back up. It will create a new database folder with everything reset.