Describe the bug
When adding Obsidian (ID 49), the game saves and closes.

To Reproduce
Steps to reproduce the behavior:

1. Have a modpack with any amount of mods in it
2. Open the Xray menu
3. Add block ID 49

Expected behavior
I was expecting the mod to add it without issue like it had with any other block so far.

Minecraft Enviorment

• Minecraft Version: 1.7.10
• XRay Mod Version: fgtXray-1.7.10-1.0.1.75 (not sure where to find it, that's just the file name)
• Mod Pack & Version if applicable: Any modpack running 1.7.10
• Forge Version: 10.13.4.1614

Additional context
Doubt this was part of the issue, but each time I added it I called it "Obsidian" spelled like tha
crash-2022-01-08_16.24.29-client.txt
t

Wanted to leave an update:
It seems to crash with any vanilla block, but modded blocks are fine. Only happens when adding the block, but not when using the pre added ones.

1.7.10 is no longer supported. PR's are welcome.