I don't understand why you reported that your post was locked, when I see that its not.
Reinstall Soldat, delete the Soldat folder, and resintall. If that doesn't work, try downloading Soldat from a different mirror (just to ensure that the download isn't corrupted) and install from there.
If all else fails, tell me if you've made any changes to your system recently. New software, games, drivers, updates, etc.
And don't go reporting posts just to get a moderator's attention to yours. Eagles_Arrows gave you the solution you need.