[CLIENT] Mac Os X Client not starting.

My Computer is a Mac Os X. And an quite a powerful one at that,(running OS X El capitan 10.11.6) I can run popular games (CSGO, TF2, Etc.) at high quality with good ping, except for League of Legends, the only thing that doesn't run for me. Whenever I open it the League of Legends app shows on my Dashboard, and it tells me it's running however it just doesn't run (I get the Application Is Not Responding message when I right click on the app.) and I get this every single time i try to load up League of Legends, I managed to find a short fix for it, (uninstalling then reinstalling the game) however this takes lots of time and only works until I close it, then it's broken again.

The problem is with the loader not responding I think.