Hello! I understand your Bingo Cash app keeps closing itself after 20-30 seconds, and you'd like some help with that. Before we get to solutions, could you please tell me:

- Have you noticed if the app crashes when performing a particular action, like starting a game or opening a menu?
- Is your app up to date with the latest version?
- Have you tried restarting your device or clearing the app cache already?

These details will help me guide you better. Meanwhile, I'll outline some steps we can try together to resolve this.

1. Clear the App Cache
Since you're on Windows with WebKit, if you're using a desktop app or a browser-based version, clearing cache or cookies related to the Bingo Cash site can help. For desktop apps, it's usually in app settings or storage management. For browsers, clear your browsing data for Bingo Cash, focusing on cache and cookies.

2. Restart Your Device
Sometimes, a simple reboot frees up resources and clears temporary glitches.

3. Check for App Updates
Ensure your Bingo Cash app or your browser is updated to the latest version, as updates often fix bugs that cause crashes.

4. Close Background Applications
If many programs run in the background, they might interfere with the app's performance. Try closing unnecessary apps to free up memory.

5. Check Storage Space
Insufficient storage can cause apps to crash. Make sure your device has enough free space.

6. Reinstall the App
If the problem persists, uninstalling and reinstalling the app can help fix corrupted files.

If after these steps, the app still crashes after 20-30 seconds, please let me know exactly what you tried already, and any messages or patterns you notice. That way, we can dig deeper or escalate to more advanced troubleshooting.

Unfortunately, I cannot provide images or video footage here, but I can guide you through any steps as needed.

Are you satisfied with these initial steps? Would you like help with detailed instructions on any of them?