kicking me to log-in

[Amazeballs]

about 2 days ago I was able to log in fine, and this morning when I tried to log in, it instantly kicks me back to the log-in screen once I click log-in from character select and says I need to re-un update patch once I try to re-log back in, I never even make it all the way into character selection.. i've tried re-updating all of my files, and even a fresh install of the client i've never had a problem like this before and was curious if you all knew of any reason it might be doing this? thanks!