Make sure you have enough memory available to run the game. Most Nick games need 3 GB to install and load the first time. Restarting your device and closing other open apps will help free up available memory!
You may also want to try uninstalling and reinstalling the app. **PLEASE BE AWARE: Deleting the app can cause you to lose all progress and/or purchases in the game**
If this problem persists, please CONTACT US.