[Crash] Mac client continuing to crash in game.

I use a Mac to play LoL, and I have been having my computer crash so frequently, it is very frustrating. I stopped playing for about a week, waiting for the bug to be fixed. I noticed that in the patcher, there was a notice saying that the bug was being fixed. I logged on a day or so afterward, and there was no notice, so I figured that it was fixed. But after playing one game, it happened ten minutes in, and I loaded back into a game that we were now losing. I played another game, this time it did not crash my computer, but completely froze up my game, so that I couldn't see any movement, but the game was still responding because I could hear the audio responses to my actions. I had to manually restart my computer in order to get out of it. There is not 100% reliability in when the bug occurs, but it usually happens when something rather simple happens. Some of the things that cause it are a Yasuo E/Q knockup combo, a Leona Q stun, a Nidalee Q-Spear landing on someone in a bush.