Issue Description:

Yes, it is just like the title says.

What happens:

Crashes.

What you expected to happen:

Not crashes.

Steps to reproduce:

1. Install NeoForge and the mod
2. Launch the game
3. Enter Mods list, and click Config button

---

Affected Versions (Do not use "latest"):

• ShulkerBoxTooltip: neoforge-5.0.4+1.21
• Minecraft: 1.21
• NeoForge: 21.0.164

Your most recent log file where the issue was present:

(Deleted)