I'd suggest you send it to me and I'll fix it and send it back.
Give a man a fish, he eats for a day. Teach a man to fish, he eats for a lifetime.
No offense, but I think we should first try to help him, instead of doing it for him
Making a Geo lod is tricky at first, I use to have a lot of trouble at it. Here are a set of basic guidlines:
1)You must have components in the geo lod. You do this by selecting the whole building (press Ctrl A), and selecting Structure-Topology-Find Components in the top bar.
2)You can have no more than 99 components, any component past 99 will not be recognised in the game.
3)The can be
no holes in a component, and the component
must be convex, it can not be concave!
4)For the geo lod, all components must have a weight. You do this by pressing Ctrl A, and setting a weight in the lower left hand corner of the screen.
5)You object can not be bigger than 60x60x60 meters!
With a little practice, you will get the hang of it.