I CAN'T START LEAGUE OF LEGENDS

I downloaded the game on my new MacBook Air and tried to run it. I successfully managed to log in and patch it. Then I tried to start Practice Tool but the launcher froze. I waited couple of minutes and decided to restart it. Now when I try to open league I just get error saying "LeagueoflegendsUx suddenly stopped working" imidiatelly after pressing league icon. When I go to files and try to open it by clicking on League Client file Client starts and I get "Unexpected error with the login session" What do I do pls someone help.

ps I used to play on windows and its my first time trying to play on macOS and I can't even start a launcher what is going on