DVR Device Error

I tried Antennas a while ago but decided not to continue and deleted the DVR from plex but I am seeing this a lot in my Plex Media Server.log file, I guess somewhere Plex still thinks its configured?

ERROR - DVR:Device: Error refreshing existing device device://tv.plex.grabbers.hdhomerun/12345670, marking as dead.

How can I remove it fully from plex? It no longer shows Settings / Live TV & DVR.

Thanks