Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
I had to delete the app and re-add it. I couldn’t just sign out because it kept popping up content not available. I would hit ok and before I could arrow down to my name it would pop up again and reset the cursor position.
You'll need to reach out to SiriusXM support for help logging into their channel/service. Roku has no ability to assist with your username or password for external channels/services. You can reach SiriusXM support here: https://www.siriusxm.com/contactus