Error Code when starting lessons in COD

[salmo]

Try checking the integrity of your steam-installed game.

1. Right-click the steam icon in you active task bar & select 'library'.
2. On the left side of the steam library window, you should have Cliffs of Dover listed.
3. Right-click on 'Cliffs of Dover' in the game list & select 'properties'.
3. In the properties screen, select the 'local files' tab.
4. In local files, click the 'verify integrity of game cache' button.

If that doesn't work, then try to reinstall the C# libraries by:

1. navigate to your X:\Program Files (x86)\Steam\steamapps\common\IL-2 Sturmovik Cliffs of Dover\redist\VCRedist folder.
2. Click on the vcredist_x86.exe application & run it.