Welcome and thank you for posting here in the Roku Community, @jwm93k.
We regret to hear about the trouble and inconvenience this may have caused you. Worry no more as we are here to further review the accessibility of the Fox Nation app on your Roku streaming player and help you get back on streaming.
Before we proceed, could you please clarify if you can't access the app inside The Roku Channel or directly from the standalone? Also, are there any error messages prompted when you try to access the app? Additionally, we also need to know what specific troubleshooting methods have you performed to try and access the app so we can provide you with additional troubleshooting steps.
We'll be looking forward to your response as we are more than eager to find you the best resolution possible.
Best regards,
Carly
Carly Y.
Roku Community Moderator