Hi there! I see your Universal Truck Simulator app is not working. Could you tell me a bit more about what's happening? For example, is the app not opening at all, stuck on a loading screen, showing any error messages, or crashing? This will help me guide you better.

In the meantime, I can suggest some basic troubleshooting steps that tend to help with common app issues on your AndroidOS 10 device using WebKit:

1. Clear Cache and Data:
- Go to your device Settings > Apps or Application Manager.
- Find Universal Truck Simulator in the list.
- Tap on Storage.
- Tap on Clear Cache, then Clear Data. (This will remove temporary files and reset app settings but won't delete your saved progress unless it's stored locally.)
2. Restart Your Device:
- Power off your phone and turn it on again. This refreshes system resources that might be causing the problem.
3. Check for Updates:
- Visit Google Play Store and check if there is an update available for Universal Truck Simulator. Sometimes bugs are fixed in newer versions.
4. Reinstall the App:
- Uninstall Universal Truck Simulator.
- Restart your device.
- Reinstall the app from Google Play Store. This replaces any corrupted files.
If you already tried some of these steps, please let me know which ones, and if you noticed any specific app behavior during the issue. That way, we can try more specific solutions or dig deeper.

Are you getting stuck on a screen or is the app closing immediately? Any details will help!