0.4.15 running Clonecraft from the Clonecraft10322.zip file.
Only rock and minerals are generated plus a few shrubs, water, and zombies at night. I think there are supposed to be trees and dirt. The game does not crash but also does not have enough resources to play. I am attaching the debug file made while creating a new Clonecraft world. It has a lot of errors where it cannot find things like textures or cannot generate things. There are some warnings about aliases that say it cannot reuse names.
Most the debug file is attached with about 10,000 lines removed from the middle. I think I was able to leave in the important parts.