Current Behavior

If describing a bug, tell us what happens instead of the expected behavior.
If suggesting a change/improvement, explain the difference from current behavior.

I'm on GTNH version .8.9, which ships with GT++ 1.7.05.Local-hazmatfix according to the file. Every 30 seconds to a minute, my game crashes with the following crash report:
https://pastebin.com/ytjqEm3R

Steps to Reproduce (for bugs)

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reproduce this bug. Include code to reproduce, if relevant.

The crashing seems to be irrelevant of what I actually do- it just crashes, less than a minute after I open the world, every time I try. My world is pretty heavily polluted, and the crashlog mentions pollution, so I'd assume it relates to that somehow.

Context

How has this issue affected you? What are you trying to accomplish?
Providing context helps us come up with a solution that is most useful.

Game Environment

Include as many relevant details about the game environment or modpack you experienced the bug in/on.
If you are using a Modpack:

• Modpack Name: GTNH
• Version used: 2.0.8.9
• Download Link if possible:

If not using a modpack:

• Mod List - Upload to Pastie/Pastebin/etc:

Also include:

• Gregtech version: 5.09.33.38
• IC2 version: 2.2.828a
• Java version: 1.8.0_241 64-bit
• Operating System: Windows 10

Misc Info

Check all that apply ([ ] -> [x] - use a lowercase x)

• [x ]    Using GT:NH/GT:New Horizons?
• [x ]    Single Player?
•    Multi Player?

Pretty much the same is happening to me too, tho its noteworthy that i am in early steam age with just 1 of each basic steam machine type and i therefore dont have that much pollution in my world. The crash occured btw for on a local server. (GT:NH 2.0.8.9 too)
crash report: https://pastebin.com/sZPTXeck
log file server side: https://pastebin.com/mwtPVA90