I have the newest version 1.4.1 and when I try to launch minecraft it just crashes.

The launcher error says "The game crashed whilst initializing game
Error: java.lang.RuntimeException: Could not execute entrypoint stage 'main' due to errors, provided by 'bedrockify'!
Exit Code: -1"

Here's the crash log:
crash-2022-04-05_09.10.05-client.txt

Hopefully this helps fix this.

Seems that it is caused by an incompatibility with another mod modifying world generation. In the mean time, you can change in .minecraft/config/bedrockifyMixin.json the entry common.features.worldGeneration to false.

It was set to false. I set it to true and it fixed it.