Contour 2 app for Android

I removed all previous cox apps from my Galaxy S3, Android 4.4.2 phone.  Installed the Contour 2 app from the Google Play Store.  Launched the app.  Used my login and pw and clicked continue.  The screen changes and comes right back to the login screen again.  No error message saying login or pw is incorrect.  Tried an incorrect login and then the screen comes back with an error message that the login is incorrect.  Any suggestions?