Hello! I understand your skill levels in the Grand War 2 app are not working as expected. Let’s look into it together.

Could you tell me a bit more about what you mean by “skill levels not working”? For example:
- Are you unable to level up the skills of generals or units?
- Do the skill upgrades not show any effect in gameplay?
- Are there any error messages or bugs appearing when you try to use or upgrade skills?
- Have you recently updated the app or changed any device settings?

Once I have a better picture of what’s happening, I can guide you through some steps to fix it on your Kindle device running Android 11.

Meanwhile, here are some initial basic checks:
1. Restart the app: Close it completely and reopen to reset any temporary issues.
2. Check for app updates: Visit the app store to ensure you have the latest version, where some skill bugs may have been fixed4.
3. Clear cache: Go to your device Settings > Apps > Grand War 2 > Storage > Clear Cache. This can remove corrupted temporary files affecting skill functions.
4. Ensure stable internet: Skills usually need server communication; a weak connection may cause issues with upgrades.

Could you try these, let me know what happens, and share any more detail? Then we can explore more specific fixes or advanced troubleshooting.

Are you satisfied with this approach so far?