Guide and Recording Not Working on Pi 3

I just recieved my Raspberry Pi 3 Model B as part of the Vilros Starter Kit Bundle and want to record TV shows with my HDHomeRun. However, when I try to record a show, there is no guide, despite the fact that I have the correct add-ons installed. I also cannot record shows at all, as the recording button is greyed out. I'm using the HDHomeRun DVR add-on in the LibreELEC repository, to help you out. How do I configure this correctly so I can record my CW shows? Also, how can I force my HDHomeRun to see a channel that is within range, but it refuses to acknowledge?