SMU Challenge funktioniert nicht

As a single player digital simulation game, the game is designed to be fast-paced mobile game that tests students knowledge using basic questions.  The SMU Challenge is a mobile trivia game app where faculty can upload questions and have students compete and answer them via the app.  The primary motivation and purpose of using this game is for personalized learning with self-paced digital tools and to learn more about the subject matter in an engaging way.  Each correct answer is two points and if the student manages to answer 3 consecutive questions, a fever mode is triggered with the chance to earn more points.  Students have to answer a series of multiple choice questions within a specified time limit.  Players can also gain more time through the three different bonus rounds, which comprise different question types.  Be quick as you speed through 3 exciting bonus game levels!  Test your knowledge through a multitude of questions.  Hone your reflexes as you fire your way through the questions!  Challenge your friends and top the leaderboards!  Can you rise to the SMU Challenge?!  They are also able to review their responses to learn from their mistakes, post their scores to a leaderboard and send challenges to other players.