After I cleaned out the memory and the cache and moved my pictures and video to a pc. I had just decided to do what you suggested by uninstalling the app and reinstalling it. I also rebooted the modem. Now it is working. All channels have audio.
I know what is ruining my memory on this phone. I joined Whatsapp. I landed in a family account and they pass around lots of video and pictures. So it was automatically downloading. That caused the phone, only 12 GB, to max out of memory. So I changed settings to not automatically download media.