I succeeded in creating the underground world.

But I found that it did not produce ore,

There were no trees, which made it impossible for me to continue to live.

I wonder what's wrong?

Which version? I am using the latest in 1.18.2 right now and I have coal and Chroganium

??? Chroganium isn't a thing in the mod, and there's more things than just coal. Usually world gen features not existing is caused by another mod

*Crogglum, sorry