Wondering why not simply visit Gameloft's customer care at http://support.gameloft.com/?lang=en ?
They say: "We are here to assist you, guide you and help you enjoy your game to the fullest."
Taken from this Gameloft's support site:
Game crashes after a few seconds of the game loading
If your game crashes as soon as the loading is completed, please try restarting your device and your Wi-Fi router as the issue could possibly be caused by an unstable Internet connection. Thank you for understanding.
Can anybody run and actually play Gameloft - Dragon Mania Legends ?