Lua errors when saving

when i try to save the game from the menu or the gm_save command, i get this:

ServerLog: Sending save to player Player [1][RedGrinch]

[ERROR] lua/includes/modules/duplicator.lua:370: bad argument #1 to 'pairs' (table expected, got nil)
  1. pairs - [C]:-1
   2. CopyEntTable - lua/includes/modules/duplicator.lua:370
    3. Copy - lua/includes/modules/duplicator.lua:510
     4. CopyEnts - lua/includes/modules/duplicator.lua:541
      5. SaveMap - lua/includes/gmsave.lua:82
       6. unknown - gamemodes/sandbox/gamemode/save_load.lua:27
        7. unknown - lua/includes/modules/concommand.lua:69

And i cant save my game as a result D: help!

Getting this also - sadly no responses yet. bumping for importance. I just built a huge base/building that took me two hours to make and now I find out I cannot save. I’m hoping to get a solution quick enough so I can save my stuff.

This is fixed in the SVN version