Thanks for the errorlog file
This one is dated on the 9th of August, at that time the Nvidia driver wasn't updated yet (driver is dated on February 2015). Or did you install the latest Nvidia driver after this date?
The problem is indeed a missing OpenGL context, which should never happen with any Nvidia driver (unless it's many years old
).
Perhaps just download and install the latest Nvidia driver again, the latest stable driver version should be 368.81:
http://www.geforce.com/drivers/results/105033
If it still does not work then, maybe delete all "errorlog" files in your game dir and try to start the game again, then upload the latest errorlog again please.
Maybe the problem is caused by the AMD APU, it seems there is no driver installed for it
Where did you plug your monitor, did you plug it into the mainboard or the Nvidia card?