What happens:

On Load get NullPointerException; no scripts load

What you expected to happen:

Scripts to load and work properly without NPE

Script used (Please Pastebin or gist your script, posting an unpasted or ungist'd script will automatically close this issue):

https://pastebin.com/A1pDcYdB

crafttweaker.log file (Please Pastebin or gist your file, posting an unpasted or ungist'd file will automatically close this issue):

https://pastebin.com/5EEsUX0i

Affected Versions (Do not use "latest"):

• Minecraft: 1.16.1
• Forge: 32.0.77
• Crafttweaker: 7.0.0.21 & 7.0.0.22
• Using a server: no
• If yes, does the client have the exact same scripts?

Your most recent log file where the issue was present:

https://pastebin.com/RnrYPLPp

You say this is 1.16.1?

Where are you getting:

import mods.immersiveengineering.Crusher;
import mods.immersiveengineering.ArcFurnace;
import mods.mekanism.enrichment;

from?

i was trying something that I picked up from a different modpack. figuring that importing would load the class related to the machine and I could short-hand the machine. Here is the paste for my original script where I had everything written out.
https://pastebin.com/vYEZ7nL6

Don't take other peoples scripts if you don't know what you're doing.

Neither IE nor mekanism have crafttweaker support in 1.16.