plex dvr doesn't record

Is there a way to at least find out what’s going wrong with my plex server? I’m using a silicondust network tuner. I can use the silicondust app and view tv just fine. When I install it into plex, it does the scan and I can see it finding the channels, but when it tries to record, it says “unknown error occurred.” I can’t even start with that… When I try to view live tv, it just sits there with the buffering circle on screen. The logs say it discovered the tuner and everything is set up, but then it never even shows that it’s trying to play live tv…does anyone know what’s going on or how I fix it? Sorry, I realize this is very little to go on…I wish I could give you better information…