For feature requests, just erase this template and clearly describe the feature you'd like to see

Minecraft Version

1.16.5

Forge Version

31.6.0

Mod Version

1.16.5-2.12.5-190

Describe your problem, including steps to reproduce it

Having both Pneumaticcraft and JEITweaker installed causes this error to appear upon reload, which I believe is the source of an issue I'm having with JEITweaker.
https://gist.github.com/n2galaxy/576c03e4757a91d1ad701d3ad30baac9#file-latest-log-L7622
(edited because that line was wrong)

Any other comments?

Thanks in advance.

Can I see your JEITweaker startup scripts please?

Yep. As I thought, you have an error in your script. Search for refinery and it will be very very obvious.

Here you go.
https://pastebin.com/fbw3azpJ
https://pastebin.com/m0QQVCPS