I work in a big modpack, where I should need to add a lot of items, fluid and ores by ContentTweaker, but now, each time I do a little modification in my script I have, the modpack completly crash during the loading and I got an Java Error.
https://gist.github.com/Fireztonez/0b5ff62c3dfdbefd3f48d7dc8098d7a6

For each line I add, I need to debut about 5h minimum, because the game completly crashed, and the CraftTweaker.log contain no fatal error :
https://gist.github.com/Fireztonez/3c4a919a15967a17b54008d41392df34

if you want to say my last buggy version of my ContentTweaker script is in my github:
https://github.com/Fireztonez/The-Science-of-Engineering/tree/master/scripts/contenttweaker

in the parts.zs all the comments is thing I whan't to do, but is crash... Possibly you can help me with something...

And for sure, if you can fix the game crash, that should be nice.

If needed I can send you a complete crash report log

Minecraft: 1.12.2
ContentTweaker: 4.5.0
CraftTweaker: 4.1.6
Forge: 14.23.3.2655

Fireztonez