Hi @RettaJ,
Welcome to the Roku Community!
Are you using a Roku TV or a Roku device?
If you are having an issue with your Roku device screen going black but can still hear the audio, we suggest restarting your Roku player, go to Settings > System > System restart. For Roku TV, try unplugging your TV for 10-15 minutes then plugging it back in.
You may also refer to this link for additional troubleshooting steps: How do I resolve channel playback issues? | Official Roku Support
Let us know how it goes! We're hoping this will work for you.
Many thanks,
Mary
