FOSS gamedev and creative worlds

I keep getting this code for the Bear Grylls mod by Rhys.

07:05:26: ERROR[main]: ========== ERROR FROM LUA ===========
07:05:26: ERROR[main]: Failed to load and run script from
07:05:26: ERROR[main]: C:\Users\Scott\Desktop\minetest-0.4.9\bin\..\mods\beargrylls\init.lua:
07:05:26: ERROR[main]: ...t\Desktop\minetest-0.4.9\bin\..\mods\beargrylls\init.lua:15: attempt to index global 'default' (a nil value)
07:05:26: ERROR[main]: stack traceback:
07:05:26: ERROR[main]: ...t\Desktop\minetest-0.4.9\bin\..\mods\beargrylls\init.lua:15: in main chunk
07:05:26: ERROR[main]: ======= END OF ERROR FROM LUA ========

No, here is also wrong. Post it in the mods topic, so here: viewtopic.php?f=9&t=8067