As long as youhave the latest KKcontinued and Custom Pre launch checks, the rest is not helpful for this question.
What you need to do is say what version of KSP and exactly what didn't work for you, e.g is KK showing in your toolbars. Did the editor not show up when you hit Alt K, etc.
Assuming that is road or runway. I don't know it's set up myself but if it uses an emissive texture set up and the texture file for the emissive background has gone missing or corrupted, then the main texture doesn't get darkened properly and as a result it looks all lit up. If you can look at an original installation for that static and compare with what you have, you may find a missing texture pic.