Our students our having trouble accessing the PPE app on their phone.  They can download the app, put in the access code from the book they purchased, choose a username and password to set up an account, find our product (Future Intro) and its excercises, but there is a picture of a Lock  on the excercises so the excercises will not play.  Also, after having set up the account, an icon that says Signing In just keeps going around and around.  That might be due to a weak or slow internet, but why would the App download without any problem and then the students not be able to sign in?