Error im getting when trying to use the nexon plugin

Whenever i try to login with the nexon plugin,i get this weird error,i know i made my account and i not 100% sure i validated it correct but anyways....can some1 tell what this error is and help me out?
Screenys:

Your account name or password was typed in wrong. Make sure you didn't mix up your login name and nickname you can only login with one, I accidently typed in the wrong name so thats how I fixed it.

I keep trying possible user/passwords , but iit wont work...looks like its time for a new account !?!? ?!