There are several factors that could hinder the game download process. Two primary reasons are a poor internet connection and insufficient storage space.
To avoid issues, ensure you are using a Wi-Fi connection and that no other apps are being updated or downloaded simultaneously.
If you continue to experience problems with downloading the game or encounter specific error messages, please don't hesitate to submit a support request. Be sure to provide us with as much information as possible, and we will be more than happy to help you.