Hi! Thanks for reaching out about the SAKURA School Simulator app crashing on your Kindle tablet. I'd like to help you get this fixed. To start, could you tell me whether the app crashes immediately on launch, or does it crash during gameplay? Also, have you tried any fixes already?

Meanwhile, here are some common steps tailored for your Kindle tablet running Android 9 that can often resolve app crashes:

1. Restart Your Device
Sometimes a fresh start clears temporary glitches affecting the app.

2. Clear App Cache and Data
- Go to Settings > Apps & Notifications (or Applications)
- Find and select SAKURA School Simulator
- Tap Storage
- Clear Cache first and see if the app runs
- If not, Clear Data (this resets the app, so your progress may be lost unless saved online)

3. Update the App
Make sure you have the latest version of SAKURA School Simulator installed via the Amazon Appstore or Google Play Store, wherever you downloaded it.

4. Check for System Updates
Go to Settings > System > System Updates to ensure Android 9 is fully up to date. Sometimes app crashes happen due to OS incompatibilities.

5. Free Up Storage and Memory
Low storage or RAM can cause crashes. Try deleting unnecessary files or closing background apps.

6. Reinstall the App
Uninstall, then reinstall the game to repair corrupted files.

If after trying these the app still crashes, please let me know the exact moment it crashes and any error messages you see. I’m here to help further!

Are you satisfied with this initial set of solutions?