Hi there! I can help you with the issue you're facing with BBC Sounds not opening on your device. Let's try to get this sorted out.

First, could you let me know if you're using the BBC Sounds app or if you’re trying to access it through a web browser? Also, have you tried any troubleshooting steps yet, like restarting your device or clearing the app cache?

In the meantime, here are a few steps you can try:

1. Restart Your Device: Sometimes a simple restart can solve the issue. Turn your device off, wait a moment, and then turn it back on.

2. Clear the App Cache: If you’re using the app, go to your device's Settings > Apps or Application Manager > find BBC Sounds > and tap on Storage. From there, you can clear the cache. This can help if old data is causing the issue.

3. Reinstall the App: If the problem persists, you might want to uninstall the BBC Sounds app and then reinstall it. This often resolves any persistent issues.

If you're accessing the service through a browser, clearing the browser cache might also help. Would you like me to provide steps for that?

Let me know what you've tried, and we can take it from there!