Error while running event LinkedChestAndPipe::on_gui_opened (ID 95)
LinkedChestAndPipe/scripts/linked-chest.lua:256: attempt to index local 'quality' (a nil value)
stack traceback:
LinkedChestAndPipe/scripts/linked-chest.lua:256: in function 'show_chest_item_count'
LinkedChestAndPipe/scripts/linked-chest.lua:136: in function 'callback'
LinkedChestAndPipe/scripts/event.lua:20: in function <LinkedChestAndPipe/scripts/event.lua:13>
