My game won't start

My game dosent open when i click start and the Game Crash message comes up.
This is the game log:
15:36:08 launcher Preparing to launch minecraft client for 1.11.2
15:36:12 launcher Checking installations.
15:36:12 launcher Minecraft client 1.11.2 is ready to start.
15:36:12 launcher Starting!
15:36:12 launcher Using default game log configuration client-1.7.xml (outputs XML)
I found this strange since everyone elses message looked different.
Hope i can get help as soon as possible.