java.lang.NullPointerException

Hello, I use the IngameServerSwitcher mod and when I switch servers, this message appears:
I have been testing and found out that 5zig is responsible for this. I use the 5zig-Reborn-1.8.9-b251. Is there anything you can do about it?

The issue involves a NullPointerException when switching servers with the IngameServerSwitcher mod, and 5zig is identified as the cause. Start by examining the server switching logic in the mod's codebase, particularly any integration points with 5zig. Look for null checks or missing initializations in the network handling or UI components. Reproduce the issue in a development environment to see the exact stack trace and identify the failing line.

索引モデルが issue の本文から書いたものです。