When I going to log into my world the game gets stuck on loading, it freezes after reading world data and I don't know what to do.

Thank's, that solved the problem.

I tried to reinstall the modpack but it didn't helped me.

Here is the latest crash report if that might help solve the problem:
crash-2023-11-08_21.42.19-server.txt

Here is the latest crash report if that might help solve the problem: crash-2023-11-08_21.42.19-server.txt

Go inside the world folder, inside serverconfig folder, delete utilitarian-server.toml. If it continues to happen with different configs, you may need to delete the whole serverconfig folder, the game will remake it.