Hello! I'm Henry Adams, here to assist you with your issue regarding the MSN news app showing "webpage not available." I understand this can be inconvenient. Let’s work through this together to pinpoint the issue.

1. Initial Check: Can you please confirm if you're connected to the internet and if other websites or apps are functioning properly?

2. Clearing Cache: A common step to resolve issues with apps is to clear the cache. Here's how you can do it:
- Open the Settings on your device.
- Navigate to Apps or Apps & Features.
- Find the MSN News App and select it.
- Click on Storage, then tap Clear Cache.

3. Reboot the Device: After clearing the cache, it’s usually a good idea to restart your device to ensure all changes take effect.

4. Run the Troubleshooter: If you're still facing issues, we can run the troubleshooter:
- Go to Settings > Update & Security > Troubleshoot.
- Select Additional troubleshooters, then choose Windows Store Apps and click Run the troubleshooter.

5. Reinstall the App: If the previous steps don't resolve it, try uninstalling the MSN News App and then reinstalling it:
- Go back to Settings > Apps.
- Select the MSN News App, tap on Uninstall.
- After uninstalling, visit the Microsoft Store to reinstall the app.

Please try these steps and let me know how it goes! If you're still encountering issues, we can explore more advanced options together. Are there specific steps you’ve already attempted?