Launcher isn't logging me in.

So I started a game about 10 minutes ago as Xerath, nothing out of the ordinary until my game crashes and now whenever I go to log in again, it tells me that my password is incorrect. I spent the last 5 minutes typing it in, I even copied and pasted it from a different document where I could see it. The game is still going on and I can't join because it won't log me in.

Any way to fix this? Greatly appreciated.