23:16:03: ERROR[main]: ERROR: An unhandled exception occurred: .../minetest/.minetest/mods/pipeworks/flowing_logic.lua:207: bad argument #1 to 'get_node' (table expected, got nil)
23:16:03: ERROR[main]: stack traceback:
23:16:03: ERROR[main]:  [C]: in function 'get_node'
23:16:03: ERROR[main]:  .../minetest/.minetest/mods/pipeworks/flowing_logic.lua:207: in function <.../minetest/.minetest/mods/pipeworks/flowing_logic.lua:171>