Plutonium

This Error pops up while starting T6.
How do i fix it?

Dss0 Now it says either runs into a problem while starting the game or it says snowrunner authentication failed. What should i do now?

Dss0 where is the game folder?

Exception Code: 0xC0000005 Exception Address: 0x32DB1B0C
how do i fix this error code?
I changed something in the graphic settings and now i can't start the Black Ops 2 multiplayer anymore.
Zombies works btw.