[CLIENT] Multiple League Apps on my sidebar. Opening them will not work, and I can't Force Close it.

So I was just playing League, like usual. I played a couple of games, and noticed that I had 3 applications that are on my sidebar. They are legacy client logos, and opening them does nothing. Force closing them does nothing. I don't know what to do! If you guys can help me, that would be great. By the way, I am using a Mac download of the game, and the computer I am using is an Os X El Capitan.