HELP Kerkythea crashes immediately when rendering

Here is my situation...
I have complex Sketchup model - pretty much a fully detailed BIM model. I applied most materials in Sketchup and some in Kerkythea. I did Plugin>Export Model in Sketchup. I opened it up on a more powerful computer in Kerkythea, applied materials and started rendering.
With the setting on PhotoMap Med + AA with a res. of 1214x664, it renders. I would like a higher resolution, but when I double the res. to 2428x1328 or choose a finer rendering mode, it crashes before it goes through any steps.
The only rendering modes I'm familiar with are Ray Tracing Quick, just to get an idea of how it will look, and Photon Map High + AA. Perhaps there is another setting which will yield high quality results but not crash.
Any advice? Would exporting as a scene from Sketchup ease things up? I'm really open to anything.
I have complex Sketchup model - pretty much a fully detailed BIM model. I applied most materials in Sketchup and some in Kerkythea. I did Plugin>Export Model in Sketchup. I opened it up on a more powerful computer in Kerkythea, applied materials and started rendering.
With the setting on PhotoMap Med + AA with a res. of 1214x664, it renders. I would like a higher resolution, but when I double the res. to 2428x1328 or choose a finer rendering mode, it crashes before it goes through any steps.
The only rendering modes I'm familiar with are Ray Tracing Quick, just to get an idea of how it will look, and Photon Map High + AA. Perhaps there is another setting which will yield high quality results but not crash.
Any advice? Would exporting as a scene from Sketchup ease things up? I'm really open to anything.