Try to repair install in Sims 3 game client in Origin just press your Sims 3 game icon and press repair install that shod solve it if not re-install origin if that does not help then
For this you will need to contact Origin/EA support they will gladly help you whit this problem https://help.ea.com/en/origin go here press contact as give information press I still need help at the bottom of the page and then press start live chat and you will get a live chat whit an EA agent that will be glad to help you
if this helps pleas give XP to my account thanks
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