Hi there! I understand your DoubleDown app just says "failed" and won’t come up. Let's try to get you back to playing smoothly.

Could you tell me a bit more?
- Are you trying to open the app on your Android device (looks like version 10 from your info)?
- Do you see “failed” right after tapping the app or after a loading screen?
- Have you already tried restarting the app or your device?

Meanwhile, here’s a quick step-by-step to start with, tailored for your Android WebKit environment:

1. Restart your browser and device: Since you're using WebKit browser, try closing it completely and reopening, then reboot your phone to clear any temporary glitches.

2. Clear app cache and data:
- Go to your device’s Settings > Apps > find DoubleDown Casino.
- Tap Storage, then select Clear Cache. If that doesn't fix it, tap Clear Data (note: this might remove app-stored information, so back up if needed).

3. Check your Internet connection: A weak or unstable network can cause loading failures. Switch between Wi-Fi and mobile data to see if that helps.

4. Update app and device:
- Ensure DoubleDown Casino app is updated to the latest version from the Play Store.
- Check in Settings > System > Software Update if your Android version has any updates pending.

5. Reinstall the app: If steps above don't help, uninstall and reinstall DoubleDown Casino.

If these don't resolve the issue, there might be temporary server-side problems or something deeper to explore.

Try these out and let me know how it goes! I’ll guide you to the next step based on what you find.

Here’s the official DoubleDown troubleshooting page you might find helpful too

Are you satisfied with this plan to start?