What Version of NeoTech are you using:
Bookshelf-API-1.8.9-2.3.4
NeoTech-1.8.9-2.3.9

If possible, did you break and replace the block:
Yes did that

Put any ingot in and it crashes the game
https://paste.ee/p/28TYv

Try deleting your NeoTech config directory and let it re-create the jsons.

Let me know if this fixes it.

Okay that worked thanks :D