MC Version: 1.7.10
Forge Version: 1277
Enchiridion Version: 2-1.7.10-2.0b

Details: adding an item into the enchiridion and trying to search causes the game to crash.

Crash Report: https://paste.ee/p/saste

The items are loaded from the creative menu. Normally there is no crash, but sometimes mods break themselves. Does creative search crash when you search these things? I'll stick in a try/catch to stop it crashing though.

Try updating tcon/mantle in the meantime