Click on the Apple icon in the top left corner.Click on Contents > MacOS -> RiotMacContainer.Restarting the RiotMacContainer worked for many gamers and they confirmed they were able to launch the game after doing that.
Fix League of Legends Not Opening on Macbook Fix 1 – Close the RiotMacContainer Follow the troubleshooting steps listed below and you should be able to get the game going within minutes. If League of Legends won’t open on Mac, we compiled a list of solutions for you.
