Mac Client Crashs In ARAM !!!!!!!!!!!!!!!!!!!!!!!!!!!

*My computer (Mac) freezes at 5th-10th second in ARAM

*The screen freezes , also the musics

*Whole computer just crashed

*And I have to restart the computer in order to get back to the game

I got a warning and a punishment just because this (gg)

Riot , it happened since 2 month ago , now I have to wait 5 mins for every game just because you guys didn't fix it

Riot , plz !

P.S. and take away my punishment and the bad records (i'm a nice player :)

P.P.S AND FIX IT ASAP !

THANK YOU