[CRASH] LoL Mac Client crash due to Maestro error

I have Mac mini (OS X 10.10.1) Launcher 0.5.0.198 patch 4.21 and game crashing in game

Reasoning: It seems that after some time Client is trying to connect to some riot server and that crashes game. Especially after first crash it was crashing almost exact after 2 seconds when I loaded into game.

Steps:

1. I played match with my friends and after some time game crashed.
2. I tried to reconnect multiple times and after reconnection completed and I see map after about 2 seconds it will crash

SOLUTION:

1. System Preferences -> Network -> WiFi (I connected via it) -> Advanced -> DNS
2. Add DNS Servers 8.8.8.8 8.8.4.4
3. Add Search Domains riotgames.com
4. (Optional) Turn of firewall at: System Preferences -> Security & Privacy -> Firewall