minetest carbone-ng error

Irrlicht log: Irrlicht Engine version 1.8.1
Irrlicht log: Linux 4.1.6-1-ARCH #1 SMP PREEMPT Mon Aug 17 09:07:24 CEST 2015 i686
Irrlicht log: Using renderer: OpenGL 2.1
Irrlicht log: Mesa DRI Mobile Intel® GM45 Express Chipset x86/MMX/SSE2: Intel Open Source Technology Center
Irrlicht log: OpenGL driver version is 1.2 or better.
Irrlicht log: GLSL version: 1.2
10:40:59: ACTION[main]: hb.register_hudbar: health
10:40:59: ACTION[main]: hb.register_hudbar: breath
10:40:59: ACTION[main]: hb.register_hudbar: sprint
10:40:59: ERROR[main]: ========== ERROR FROM LUA ===========
10:40:59: ERROR[main]: Failed to load and run script from
10:40:59: ERROR[main]: /home/malcolm/.minetest/games/minetest_game/mods/default/init.lua:
10:40:59: ERROR[main]: ....minetest/games/minetest_game/mods/default/nodes.lua:1687: attempt to call field '?' (a nil value)
10:40:59: ERROR[main]: stack traceback:
10:40:59: ERROR[main]:  ....minetest/games/minetest_game/mods/default/nodes.lua:1687: in main chunk
10:40:59: ERROR[main]:  [C]: in function 'dofile'
10:40:59: ERROR[main]:  .../.minetest/games/minetest_game/mods/default/init.lua:39: in main chunk
10:40:59: ERROR[main]: ======= END OF ERROR FROM LUA ========
10:40:59: ERROR[main]: Server: Failed to load and run /home/malcolm/.minetest/games/minetest_game/mods/default/init.lua
10:40:59: ERROR[main]: ModError: ModError: Failed to load and run /home/malcolm/.minetest/games/minetest_game/mods/default/init.lua