terminate called after throwing an instance of 'LuaError'
  what():  Runtime error from mod 'craftguide' in callback on_shutdown(): /root/.minetest/mods/craftguide/init.lua:2010: attempt to index local 'meta' (a nil value)
stack traceback:
        /root/.minetest/mods/craftguide/init.lua:2010: in function 'save_meta'
        /root/.minetest/mods/craftguide/init.lua:2022: in function '?'
        /usr/share/minetest/builtin/game/register.lua:429: in function </usr/share/minetest/builtin/game/register.lua:413>