Impossible to login using Android application

[Mic87xp1]

Hi, when I try to login using Android application, it say me that it is impossible to registrate because already exist another user with my username. But i'm trying to login not to register.
What i have to do to solve my problem?

[gnovella16]

Hey there! 

That's strange. Just to make sure is your account linked to Facebook? If not, can you make sure you're using your username instead of your email address? Keep us posted. 

Cheers.