Data Corruption - Client needs repair

I was entering a ranked game after being in champ select when I suddenly get a bug splat. Weird, because I've been playing all day.

After relaunching the client, I get an error saying that it has found that there is data corruption and that I can choose to repair my client. I am now having to repair the client and will probably get leaverbuster for something that is not in my control.

Is anyone else having the same problem?