Getting a similar crash to others - I am using the Py suite of mods. You can reproduce by sticking a Natural Gas derrick and doing the initial pumping (no resources yet). Once the initial pump is completed to get a resource, your mod crashes.

The mod VortiK's Deep core mining (2.10.2) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event vtk-deep-core-mining::on_resource_depleted (ID 27)
vtk-deep-core-mining/lib/resource.lua:54: attempt to index field 'products' (a nil value)
stack traceback:
vtk-deep-core-mining/lib/resource.lua:54: in function 'spawn_ore_patch_on_depleted_ore'
vtk-deep-core-mining/control.lua:20: in function <vtk-deep-core-mining/control.lua:19>

Hello, is this something you still encounter in 2.11.1 ?

Yes,still in 2.11.1

Could you please post me your save game on a file sharing service so I can reproduce the problem ?

VortiK - just a subtle note - the most recent confirmation wasn't from the OP.

Sorry, I don't know how to upload the file（My location is CN）

but it should be related to PYcoalprocessing, and there is no distribution option for deep cracks in the resource settings during game preset
I think it's possible that the resource points of the fractures overlap with those of the oil wells

Still in 2.11.1 - I used a tar pit but is the same mechanic and the same bug. sandbox save file https://www.dropbox.com/scl/fi/8ljpixhbqk2pjfndfatdq/pY-sandbox1b.zip?rlkey=9poor9dqje1bmukxessv8y1rs&st=ekhs7pqe&dl=0 use a pipe (in inventory) to connect the infinity pipe to the type-1 input. it will instantly crash when the '1' drops to 0. Needs Vortik DMC, and pY petrol handling (https://mods.factorio.com/mod/pypetroleumhandling) and associated required mods for pY. You can install the full suite by installing pyanodon alternative energy mod. I am playing the full suite. proper behavior (disable Vortik and reload) the bitumen seep is replaced by a tar pit. The building on top of the seep does not change. adding some sort of blacklist and ignoring the seeps would/should (?) fix the bug.

Hello Thank you for the pinpointing of the bug and the save providing, I will take a look.

Hello, Thanks everyone for contributing to debugging of this issue. Thanks MidnightTech for providing a controlled environement save game where the issue could immediatly be reproduced.

I've pushed the fix in a new version 2.11.2, please let me know if it fixes the problem in your games and don't hesitate if you find new issues !

Seems to be now working as it should be. However you fixed it. I'll consider this resolved.