Democracy 3.exe has stopped working

I bought this game yesterday and it worked perfectly fine until today. Everytime I try to create a new game,change the options or even half way through playing the game will just crash and the error message ‘Democracy 3.exe has stopped working’ appears. How can I fix this?

Is this for Democracy 3 Africa? If so you need to delete the Democracy 3 mods first. Watch this vid and it will show you what to do.

I have a similar problem i just bought the game with all the DLC on steam and when i try to start a new game, the game crashes.
The game also crahses when i adjust the volume in the options menu.
Can someone please explain how to solve this?