Hi there! I’m Daniel, here to help you with the Vita Mahjong app issue. When you say the app is "frozen" and won't open, could you tell me a bit more? For example, is the app stuck on a loading screen, or does it crash immediately when you try to open it? Also, have you tried restarting your device or the app already?

Meanwhile, here's a step-by-step approach we can try to get it working again on your Android 10 device with WebKit browser:

1. Close the app completely:
Open your recent apps list and swipe Vita Mahjong off the screen to close it fully. Then try reopening it.

2. Restart your device:
Hold down your power button and restart your Android device. This clears temporary memory that could be causing the freeze.

3. Clear the app cache:
Go to Settings > Apps > Vita Mahjong > Storage > Clear Cache. Clearing cache removes temporary files that might cause the app to freeze without deleting your game data.

4. Check your internet connection:
Make sure you are connected to a stable Wi-Fi or mobile data network. Vita Mahjong requires a reliable connection to run smoothly.

5. Update or reinstall the app:
Visit the Google Play Store and check if there’s an update available. If the app still won’t open, uninstall it and then reinstall a fresh copy.

If these don’t work, there may be a deeper issue we can explore like checking device storage or compatibility, or verifying if there are server problems on Vita Mahjong’s side.

Feel free to let me know what you’ve tried so far or if you encounter any error messages! I’m here to walk you through the next steps.

Are you satisfied with the solution I provided so far?