A couple of troubleshooting steps if you are playing on a compatible device are to close other open apps and free up more storage:
  • Double click the home button, you can slide through all open applications on your device
  • To close out, swipe/pull the application window to the top of your screen
If your device’s iOS is under 7, please following the instructions below:
  1. Press the "Home" button twice to view the list of open app. Swipe the list of apps to the left or right to scroll through all the apps currently open in the background.
  2. Tap the app you want to close and hold it until all the apps start jiggling.
  3. Tap the 
     in the upper left corner of the app to close it completely.
There are times when an iOS may need more free space to install your game depending on your systems and the other apps on the device. Please make sure you have about 3 GB of free space available on your device in order to properly install the game. In order to check your available memory, please go to your device’s Settings > General > Usage > Storage.

 
      
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