Hello! After crashing of the game (Steam ver.) all map has gone back to black. Besides, doors in council hall is closed, I can't go to Zandalor to the statues of Seven. What can I do? Thank you.

Memory: 16384 MB RAM
Available OS Memory: 12684 MB RAM
Processor: Intel(R) Core(TM) i7 3770 CPU @ 3.40GHz (8 CPUs), ~3.4GHz
Operating System: Windows 7 Ultimate 64-bit (6.1, Build 7601) Service Pack 1
DirectX Version: DirectX 11
Card name: GeForce GTX 780
latest Drivers
only core programs, steam and anti virus running
fully patched.