League client Log In crashes???

Ill start by saying I have been playing league sense season 3 and this has never happened. I have logged in ten times and the client instantly freezes and crashes every time. I played league yesterday , the day before and the day before that with no problems. I can no longer play league. The client has some serious issues. 3\3\15 3:12 Pm. Im sure you all can understand how frustrating it is for a player to be able to play one day with no issues and then the next day it not work at all. I logged out of league right around the time you all did your scheduled maintenance with no issues playing and now I cant play at all. :/ plz fix