Hi! I understand you’re stuck on a level in Bubble Witch 3 Saga on your Kindle device with Android 9. Let's see if we can get you past that level smoothly.

To start, can you tell me more about your issue? For example:
- Is the game freezing or unresponsive when you try to play that level?
- Does the app crash or just won’t let you proceed?
- Have you tried restarting the game or your device yet?
- Are you connected to the internet while playing, and have you tried playing offline?

Once I know more about what exactly happens at that stuck level, I can guide you through steps to fix it.

Meanwhile, here are a few easy steps to try if you haven’t done them yet:

1. Restart the Device: Sometimes a simple restart of your Kindle will clear temporary glitches. Hold the power button and select restart.

2. Force Close and Reopen the Game: From your Kindle’s settings, go to Apps > Bubble Witch 3 Saga > Force Stop. Then open it again.

3. Check for Game Updates: Make sure you have the latest version of Bubble Witch 3 Saga from the Amazon Appstore. Sometimes game bugs are fixed in updates.

4. Clear Game Cache: On Kindle (Android 9), go to Settings > Apps > Bubble Witch 3 Saga > Storage, then tap Clear Cache. This removes temporary files which might cause a stuck state without deleting your game progress.

5. Check Internet Connection: The game often needs an internet connection to sync progress. Try switching Wi-Fi networks or toggling airplane mode off/on.

If after these steps you’re still stuck on the same level, please let me know what exactly happens when you try to play it (for example, freezes, blank screen, no bubbles pop, etc.), and if you see any error messages.

Also, if you've tried uninstalling and reinstalling the game, please note: before reinstalling, connect to your King account or sync your game progress to Facebook or King’s cloud saving system to avoid losing progress.

Let me know what you find out! I’m here to help get you bubbling along again.