Webstream's audio not playing

I recently tried to play a web stream from an Azuracast on Libretime but the audio will not play. When the scheduled time came, everything but the web stream played resulting some silence. when I checked the url, https://groundrushlabs.com/radio/8000/radio.mp3 , everything worked and I was even able to get a preview but no audio on the player.

I have a similar problem with AzuraCast and LibreTime the webstream gives me this error:

“No MIME type found for the webstream”