Troubleshooting a frozen or unresponsive app on a Smart TV can be a challenging task. Here are some steps that can help

1. Restart the Smart TV
   Turn off the TV and unplug it from the wall for a few minutes. Then, plug it back in and power on the TV.
2. Close and re-open the app
   Press and hold the TV remote control’s ‘back’ arrow, or go to the app’s settings and look for an ‘exit’ option.
3. Clear cache memory
   Look for the ‘Settings’ menu on the app, or go to the TV’s main Settings menu and look for the ‘Clear Data’ or ‘Clear Memory’ option.
4. Update the app
   Check to see if there is a newer version of the app available. If there is, download and install the update.
5. Reinstall the app
   In some cases, the best way to solve the issue is to uninstall the app and then reinstall it. This will ensure that there are no corrupted files and the app is running the latest version.