There could be several reasons why your Apple Podcast app is not working. Here are some troubleshooting steps you can take to resolve the issue:

1. **Check Your Internet Connection**: Make sure you're connected to a stable internet connection. Try opening a website in your browser to test your connection.

2. **Update Your App**: Ensure that your Apple Podcast app is updated to the latest version. You can check this in the App Store.

3. **Restart Your Device**: Sometimes, simply restarting your device can solve minor glitches.

4. **Check Apple's System Status**: Visit Apple's System Status page to see if there are any ongoing issues with the Podcasts service.

5. **Reinstall the App**: If none of the above steps work, try deleting and reinstalling the Podcasts app. Please note that this should be your last resort as it may result in the loss of data.

6. **Contact Apple Support**: If the problem persists, you may need to contact Apple Support for further assistance.

Remember to back up your data regularly to prevent any potential loss.