Log in error on app

Log in error on app

Hi, I have recently set up CRM and am trying to log into the app on my android device. When I have used my email and password to log in it comes up with an error while authenticating. (USER_NOT_ACTIVE) I have done the two phase authentification on the website. Help please how can I log in as this was one of the reasons for picking Zoho CRM was that I could use on the move

Thanks

Richard