A. 1. Tap the button multiple times: Sometimes, the button may not register a single tap. 2. Restart the game: Close and reopen the app to reset the interface. 3. Clear cache: Go to Settings > Apps > Infected Frontier > Storage > Clear Cache.

B. 4. Check for updates: Ensure you have the latest version of the game. 5. Try a different device: If possible, test the game on another Android device to see if the issue persists.