This should solve that error. If not, then I don't know what's causing that.
The error might be caused because ext_config.ini can't detect the blur of the rim in the LOD_B car. For some reason, CSP have this bug. This mean, there won't be any rim in the LOD_B (if you got far from the car you won't see any rim) Sorry for this, but this is a CSP bug and not my fault. I will try to see how can I minimize this with another options in future updates.
If you want a fast solution: Delete all LODs and copy paste the main .kn5 three times and name them the same way as th LODs of the car.