How To Fix Most App Problems With On A Fire Stick
If your app is buffering, not loading, or giving you weird issues then follow these instructions.
Make sure you are on the Home screen
From this screen, scroll to the right until you get to settings.
From Applications, click on Manage Installed Applicatons
From the installed applications, scroll down and find the App that is giving you problems and click on it. For troubleshooting, I am using Universal XCIPTV
Click on the app and then click on Force Stop
Now, scroll down and click on Clear Cache.
Now go back to the home page and open the app.
If you are still having problems with the app, try restarting the Fire Stick or log out of the app and log back in. Worst case scenario, uninstall the app and reinstall it.