From: Madrid, Spain
Why don't you try making a new install, if the serial is the right you shouldn't have any problems, then update to the latest patch. I had Conflict of Heroes on my hard drive for a long time without playing it and when I decided to give another try the game somehow was corrupted, applying the latest patch fixed the issue, so try a new install of A World Divided it may work as silly as it may sound.
GG's AWD, GG's WBTS, GG's WitE Beta Tester
Beta Tester: Panzer Corps, Time of Fury, CtGW, DC CB, DC3 Barbarossa, SC WWII WiE