Are you installing the CDG into the \Documents folder (\Documents\Prepar3D v4 Add-ons\RFN_CDG_v2.0\Effects)
or the root of P3D? (\Program Files\Lockheed Martin\Prepar3D v4\Effects)
If the former does the addon.xml file include a reference to Effects?
Code:
<AddOn.Component>
<Category>Effects</Category>
<Path>Effects</Path>
</AddOn.Component>
Do you see the effect files included with the CDG in the [Effects] folder? Just asking because ErrorContent File is indicating that they are not being found at all.
Maybe try putting all of the effect files in the Effects folder of the root P3Dv4.
(\Program Files\Lockheed Martin\Prepar3D v4\Effects)
Do you get lights when using a default aircraft, not the Superbug?