Downloads don´t work - update?

[sunzet]

Hey and thank you so much for the anserw. I will try Riggfix and see if it helps.
Although, I forgot to mention that I only have Pets installed on the PC, but the
problem occurs on the Mac as well.
I will though try thos on both computers and see if it helps.

Have a nice day!

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More questions - I was googling around about Rigfix. And the word/program CC occurs a lot.
I have very small technical knowledge of the Sims 3 so I wonder what that stands for.
Is it something that I should already have or do I need to get it in order to get this problem go away?

Rigfix will probably work on the pc, but from what I can see there is no solution for Mac yet?
But if I got it right I can fix the files in the pc and then copy them over to Mac?

Many questions...sorry.