Many game performance issues (i.e. loading, crashing, missing features, sync-ing of game) can be resolved in the following ways:
 
(Note: Instructions may vary slightly depending on your device or software version.)
 
Check your Internet connection  
  • Make sure that your device is connected through WiFi, 3G, 4G, 5G, or LTE.
     
  • If you play through a WiFi connection, make sure your router is on. Additionally, try not to play too far away from it, as you may lose the WiFi signal.
     
Restart your device   

Make sure you have the latest version of your game app installed from the Amazon Appstore.
 
  1. Open your Amazon Appstore by tapping the icon from your homescreen.
  2. Tap the Menu button, then select "App Updates".
  3. Find the game in the list of pending updates and tap the "Update" button.

Restart your app by force-closing it:  
  1. From the Home Screen go to "Settings" > "More" > "Applications".
  2. Filter by "Running Applications".
  3. Select the app and tap "Force stop".
  4. Return to the Home screen and re-start the game app.

Force close unnecessary background apps using the same steps as above.   

Make sure that you have the latest software version of your device's operating system.
 
To check if there is a system update available:
  1. Open your device's Settings app.
  2. Go to "Device" (or "Device Options") > "System Updates".
     
If the issue persists, uninstall/re-install the app (*).   

(*) Important:  This step  may  cause your game progress to reset. Do not proceed with this step unless you made sure that your game is backed up through one of the available sign-in methods from within the app (e.g. Facebook Connect, email address). If your game is not backed up, Zynga may not be able to retrieve it.
 
* We do not recommend uninstalling the app if you are playing the following games:
  • FarmVille 2: Country Escape
     
Steps to uninstall / re-install:
  1. From the Home screen, tap "Apps".
  2. Tap and hold the app you want to remove.
  3. Tap "Remove from device". Some apps may ask for confirmation.
  4. Re-download the app from the Amazon Appstore.
  5. Open the app
  6. Sign back into your game by using the same sign-in method and account as before.
Note:  You won't be charged again for previously purchased apps if you are using the same Amazon Account.

If you need additional support for your game on Amazon Fire, please follow this link.
 
If you are playing on multiple devices:
 
  1. Make sure that the game app is always updated to the latest version on all devices.
  2. Ensure that the Date & Time settings on all devices are correct. We recommend using the "Automatic" option in your device settings.
  3. Make sure that the game is connected through the same account and sign-in method on all devices.
  4. Please be aware that the use of multiple devices may not be fully supported by all games.