Hi there! I see you're having trouble signing into the Fox Nation app with the error code FEA-000. Let's work together to get you signed in.

First, could you tell me which device you're using to access Fox Nation on Linux? Also, have you tried any steps so far to fix the issue?

Meanwhile, I'll guide you through some common fixes for error FEA-000, which usually relates to authentication or login problems:

1. Restart your device and your internet router to refresh the connection.
2. Clear your browser cache and cookies since leftover data can sometimes cause login problems.
3. Verify you’re entering the correct username and password. If needed, try resetting your password.
4. Ensure your Fox Nation subscription is active and properly linked to your account.
5. Try logging in from a different browser or device to see if the issue persists.

If these steps don't work, sometimes the app data can get corrupted. Since you're on Linux, I recommend clearing any app cache or cookies connected to Fox Nation and then trying again.

Let me know if you’ve tried any of these or if you want me to guide you step-by-step through clearing cache or resetting your password! We’ll get this sorted out.

Are you able to provide the device details or any other specific messages you see?