When you log into Roestta Stone (Ebsco database) you must select the language you want to learn, on two different screens. First, on the log in screen and again before the lesson will load. If you do not select the same language on both screens then you will get an error message that says:
"You can't assign this Curriculum to this learner. The Language Level for the Curriculum is not associated with a Group the Learner is member of."
If you want to change languages and learn a new one, you must log out and log back in, selecting the new language on both screens or else you will get the error above.