My League of Legends doesn't open game window after champion select!!

Hi guys! I use a macbook and recently I had to format the hardrive and reinstall MacOS. I then installed LOL and now, everytime I try to play a game, after champion select, I am not redirected to the game. The second window (the game window) does not pop out. Instead, I remain in the launcher window, which shows the RECONNECT button, and everytime I press it... NOTHING HAPPENS! I've tried reinstall the game 5 times, I did a repatch in different regions (I'm from EUW, I tried repatch in NA and Oceania), I tried the repair button, and nothing! In some videos that i saw people changed file names and data within these files from the app but it's all from window users, and I cannot follow the same procedure on mac because the app content is different.

PLEASE HELP!!! Thank you.