Hi there! I understand your Talkie app won't open and you're seeing a message that you can't open it. Let's work through this together so you can get it running again on your Android 10 device with the WebKit browser.

To start, could you tell me the exact error message or wording you see when you try to open the app? Also, have you tried anything already like restarting the phone or reinstalling the app?

In the meantime, here’s a simple, step-by-step approach we can try:

1. Restart your device: Sometimes a fresh start solves temporary glitches.

2. Check for app updates: Go to the Google Play Store, search for Talkie, and see if there’s an update available. Installing the latest version can fix bugs.

3. Clear the app cache and data:
- Go to Settings > Apps > Talkie
- Tap on Storage
- Tap “Clear Cache” and then “Clear Data”
This removes temporary app files that might be corrupted.

4. Verify your internet connection: Make sure you have a strong, stable internet connection (Wi-Fi or mobile data), as Talkie depends on this.

5. Reinstall the app: Uninstall Talkie completely, then reinstall it from the Play Store.

If after these steps the app still won't open or says you cannot open it, it might be related to app permissions or compatibility problems unique to your device or OS version. To drill deeper:

- Check in Settings > Apps > Talkie > Permissions that all necessary permissions (like Storage, Microphone, Network) are enabled.

- See if there are any system updates available for your Android 10 device.

- If the problem persists, it could also be a temporary server or app-side issue. In that case, waiting a little while or contacting Talkie’s support might help.

Does any of this sound familiar to what you’ve tried? If so, let me know what you've already done, and share the exact error message, so we can dig into more advanced fixes.

Looking forward to your reply!