I hope someone is still watching this thread. I have exactly the same problem all of a sudden.
-plane tried to load a texture that you do not have
this probably indicates you need to reinstall X-Plane.
the missing file is : Resources/ bitmap/world/moon.png
then I get the same for sun glow
I have the STEAM version and have validated xplane files three time with no success. Everything was flawless yesterday and then today it crashes. NOTHING has changed on my computer since yesterday.
Log.txt gives no more information other then missing files.