Can't login / update

I haven't been playing for a few days and wanted to play a bit tonight, but my client isn't working. I downloaded the newest patch, but didn't play on it. Now it says "We have restored this installation to an older version of League of Legends. Now we'll try to patch it up to the latest version". Next screen is: "There was a problem patching League of Legends. We'll restore a backup version and try updating again after you restart the patcher." This just goes in cycles. I have restart my computer and the client several times without any luck. Any help is appreciated
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