If you are experiencing issues with the Daily Reward and Silver Special not functioning in Grand War 2, there are several troubleshooting steps you can follow to resolve this problem:

1. Check for Updates
Ensure that your Grand War 2 app is updated to the latest version. Sometimes these issues are due to bugs that have been fixed in subsequent updates. You can check for updates in the Google Play Store.

2. Clear App Cache and Data
This step can help fix temporary issues:
- Go to your device's Settings.
- Tap on Apps or Applications.
- Locate Grand War 2 and select it.
- Tap on Storage and then choose Clear Cache and Clear Data.
- Restart the app and check if the issue is resolved.

3. Reconnect Google Play Games
Some users have reported that disconnecting and then reconnecting their Google Play Games account can help:
- Open the Google Play Games app.
- Go to the Settings.
- Look for an option to unlink or disconnect your game.
- Restart both the Google Play Games app and Grand War 2, then reconnect your account.

4. Check Network Connection
A stable internet connection is necessary to access in-game rewards. Ensure you have a consistent Wi-Fi or mobile data connection.

5. Temporary Workarounds
If the issue persists, consider checking community forums or social media for any temporary workarounds or similar issues reported by other players in the Grand War 2 community.

6. Report the Bug
If none of the above steps work, report the issue to the developers of Grand War 2. Include details about your device, operating system, and a description of the problem to assist them in troubleshooting the issue effectively.

7. Monitor Known Issues
Keep an eye on official announcements or patch notes from the developers. Sometimes certain features may be temporarily disabled due to known bugs that the developers are working to fix - learn more.

These steps should help you troubleshoot the issues related to Daily Reward and Silver Special in Grand War 2 effectively. If problems persist, consider reaching out to community forums for more personalized assistance or updates.