Sigh…so the patch decided to change the way the game was saved thus the reason with all of the Error 16 problems.  Hey, EA…would be nice to make note of this before it installed itself into the game.  I don’t think I’ve seen such as big of a mess since the Sims 2 FreeTime DRM incident.  Looks as if EA Customer Support created a page for those having this issue, stating to use the ‘Save-As’ method until the Sims team can work things out:

Question

I get Error 16 when I try to save files in The Sims 3 or The Sims 3 World Adventures. How do I fix this?

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Answer

With the release of The Sims 3 World Adventures and Patch 1.6 for The Sims 3 base game, the way in which the game creates save files has changed.

We have received reports from users who are experiencing errors while saving their game (Error Code 16). The Sims 3 team is aware of this issue and working on a fix, which will be released soon.

In the meantime, we have tested the following workaround, which should enable you to continue saving your games.

  1. Launch The Sims 3.
  2. Open the game you wish to play.
  3. Use Save As instead of the Save option.
  4. Rename your file. You must rename your file to something entirely different than any of your pre-existing save files.

A new save file should now be created, which should allow you to play the game as usual, and use the Save feature. (In other words, you only need to Save As and rename your file once.)

Note: You will not encounter this issue by creating a new game.