When I get out of the stargate it the temple and turn right the game crashes. When i go to the left it is fine and i can go any were. It even crashed the construction set. Also When i get near the pottery in the small desert town the game get very choppy.

I need help

As for the pottery, there might be bad or corrupted textures/meshes in the game. When I downloaded the mod, i couldnt open a single file because every one of them was corrupted. The "dead zone" in your game might be a result of this. The file might have been corrupted during uploading. If not, and this is just my pc, then it might also be a result of overlapping textures/meshes. If you have any other mods that use alternate text/mesh, they might be under a different name than DUNE calls for.

Hope that helps