What happened?

When i download this, It did not spawn some structure for example dragon nests, it also didn't spawn that most important thing dragons.
I went through the files and you have the files linked to and old versions of another mod (oh the biomes you will go) and that mod has many biome and some mobs and structure are linked to it so they can only spawn there. Main point please fix this

Minecraft Version

1.16(CRASHES ONLY)

Ice and Fire version

1.20.1

Citadel version

newest versio0ns

Relevant log output

Other Information

• I am using other mods besides Ice and Fire
• I have attached a log file from the session that I have experienced this issue

also this was on another laptop