PreciousStone

Error while running the chunk
  PreciousStone.lua:130: attempt to index local `VO' (a nil value)
  func: ?, ?, line: -1, defined: C, line: -1, [C]
    func: INFO_description, global, line: 130, defined: Lua, line: 114, PreciousStone.lua
      func: INFO_STONE, global, line: 103, defined: Lua, line: 63, PreciousStone.lua
        func: ?, ?, line: 427, defined: Lua, line: 423, PreciousStone.lua