Describe the bug
The "Browser" element added on FancyMenu 3.4.0 will cause the game crash on Forge-1.20.1-47.3.0 client.

To Reproduce
Steps to reproduce the behavior (e.g.):

1. Install Fancymenu and its dependencies, and MCEF-2.1.6 (1.20.1 latest)
2. Launch the game, edit any screen you want, then add an "Browser" element to it
3. Save the layout, then back to the screen, you client will crash.

Expected behavior
Fix the crash issue.

Game Log
.minecraft/logs/latest.log: https://mclo.gs/0KF6EKT
.minecraft/hs_err_pid33644.log: https://mclo.gs/oecY54v

Basic Informations (please complete the following information):

• OS: Windows 11
• FancyMenu Version: 3.4.0
• Forge Version: 47.3.0
• Minecraft Version: 1.20.1
• Active Mods: FancyMenu, Konkrete, Melody, MCEF-2.1.6

I temporarily removed the Browser element from 1.20.1 because of the crash issue.
Will see if I get it to work there, but will close the issue for now.