Hi there! I see you're encountering the "no Auth no download" error in the Mangazone app on your Android device. I'd like to help you get this fixed.

Just to make sure I understand clearly: Are you trying to download manga chapters and getting this error message each time? Also, have you tried logging in or updating the app recently? Any details you can share will help me guide you better.

Meanwhile, here are some common reasons and fixes for the "no Auth no download" error:

1. Authentication Issue: This error usually means the app is having trouble verifying your login or authorization to download content. Try these steps first:
- Log out of your Mangazone account if logged in.
- Close the app completely (force stop if needed).
- Restart the app and log back in.

2. App Update: If your app version is outdated, it might have trouble with authorization.
- Go to your app source or wherever you installed Mangazone.
- Check for any updates and install them.

3. Network Connection:
- Ensure you have a stable internet connection.
- Try switching between Wi-Fi and mobile data to see if that helps.

4. Clear App Cache and Data:
- Go to Settings > Apps > Mangazone.
- Tap on Storage.
- Clear Cache first, then Clear Data.
- Restart the app and try downloading again.

5. Reinstall the App: If the above does not work, uninstall Mangazone fully and reinstall it. This can often clear out any corrupted files causing the issue.

Since you’re on Android 10 with a WebKit-based device, clearing app data and reinstalling is straightforward and typically safe for resolving these types of errors.

If you have tried any of these steps already, please let me know which ones so I can suggest more advanced solutions or double-check if there’s a server-side authorization problem with Mangazone itself.

Are you currently logged into an account in the app? And do you use the official version or a modified one? That info would be helpful!

Looking forward to your reply.