From the looks of those screenshots, it is that login bug a bunch of people are having @ nexon forums, launching through the .exe usually fixes it
that also appears if you happen to have capslock on or something, should give that a shot, usually they start referring you to sign into from the website if it is a ban i believe, the ?????? and auth failed to [NGM] is usually a result from typing it in wrong (i.e. capslock)