I just had this same error code pop up for me, when I d/c'd in the CS just before the moogle fight. It didn't actually get to the CS; it got stuck trying to load it, and I was forced to just exit out of the window (I play in windowed mode).

Now, every time I try to log in, I get this same error code...I'm able to log onto other accounts, but not on mine...To whoever has gotten this error code before:

Did the issue take very long to resolve itself? Is there a chance that I'm going to get screwed too, like the OP? I've already waited a while, logged into other chars, and it's still not working....... X.x