Firstly, when trying to login to the app I was unable to as it kept saying "wrong email or password", I clicked the 'forgot password' option but never received the email, I can login to my account on my laptop & have changed my password that way but still no lucking logging in with just my email and password.
So, I logged in via facebook which was successful, however then I received the "This account is no longer valid" pop up, all information I can find on the site suggests that this pop up is due to needing to update the app, however I have installed the most recent version of the app and no luck.
Unsure what to do! Such a shame as I was ready to switch over from my current language program (Mondly) straight away, maybe I'll just have to wait for the app to come out of beta testing? :(