Error Code 003 - Unable to patch League of Legends Client.

Hi,

Keep getting this "003 error code" that's telling me I am unable to patch the client. I made sure to restart my computer, test my internet connection, and run league of legends as admin. Is this an error code on my end or something with Riot?

UPDATE After closing the client and reopening multiple times, I was able to log into the client. If you're having the same issue, I would recommend just closing and opening the client repeatedly until you are unable to log in.