An error was reported when the MC tried to generate a chunk.

The error is reported because a snowy plains is generating. I'm guessing it's due to the creation of some kind of plant or mineral.

So I used Cyanide, and after that the error showed:

Is it because I've added too many mods？
If not, can this be solved？

forge 43.4.0
mc 1.19.2
pineappleDelight 1.0.7
and other mods

This should help you with this.
https://forge.gemwire.uk/wiki/Biome_Modifiers#Best_Practices

If here any crash-report (or log) with bin-paste or driver, I think we can solve these problems. Of course, if you do have solved the problem, please ignore this comment.