Hello! I see that you're having trouble with the QuizzLand app not working on your device. Could you please tell me a little more about what exactly is happening? For example:

- Does the app fail to open at all, or does it crash during use?
- Are you seeing any error messages or a black screen?
- When did this issue start happening?
- Have you tried any fixes already, like restarting your device or reinstalling the app?

This info will help me guide you better through the troubleshooting steps. Looking forward to your response!

Doesn't open at all

Thanks for letting me know the QuizzLand app doesn't open at all on your Android 10 device. Let's try some steps to get it working again.

1. Restart your device: This can clear temporary glitches that might block the app from opening.
2. Check for app updates: Open the Google Play Store, search for QuizzLand, and see if there’s an update available. Installing updates often fixes bugs.
3. Clear app cache and data:
- Go to Settings > Apps > QuizzLand.
- Tap "Storage" then "Clear Cache."
- If it still doesn’t work, tap "Clear Data" (note this will reset app settings and progress if not saved in the cloud).
4. Reinstall QuizzLand:
- Uninstall the app from your device.
- Restart your device.
- Reinstall the app from Google Play Store.
5. Check system update: Go to Settings > System > System update to ensure your Android 10 is up to date, as some apps need the latest OS patches to run.

If after these your app still won’t open, please let me know. We can look deeper into permissions or network settings next. Also, if you want, here is a helpful video tutorial with similar troubleshooting steps as a reference: How to fix QuizzLand app not working (YouTube) 1.

Are you satisfied with these steps, or shall we continue?