The mod Linked Chest and Linked Pipe (1.2.63) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event LinkedChestAndPipe::on_nth_tick(1)
LinkedChestAndPipe/scripts/auto-update.lua:217: attempt to perform arithmetic on local 'change_amount' (a nil value)
stack traceback:
LinkedChestAndPipe/scripts/auto-update.lua:217: in function 'auto_update_linked_pipe'
LinkedChestAndPipe/scripts/auto-update.lua:43: in function 'callback'
LinkedChestAndPipe/scripts/event.lua:20: in function <LinkedChestAndPipe/scripts/event.lua:13>

It is repeatable. when i place a building. i place an input pipe and place an output pipe directly to the building. it runs like 2 productions and then the bug happens.

I can not repeat this，and do not know why happen this error。Can You repeat this in new save？Or Can I have You save？

I am using it on Pyanadons. For a geothermal plant, I put an output pipe of pressurized water going into the plant. and an input pipe of the geothermal water collecting the mined water. it does the same error on a new save.

https://drive.google.com/file/d/1TJLGqZ1PJtWTbBwxC1Eyej8gM8G8MlbT/view

for my save.

fixed in new version

Thank you very much. Very fast response and fix time. You're awesome!