Help

I am also having the same issue for the error that I am receiving is as follows: world not installed when this pack has finished downloading restart the Sims 4 to install it.

I have cleared the cache I have uninstalled the base game and all packs and reinstalled them I have also repaired them as well with no luck. 

The packs in question are Cats and Dogs, Stranger Ville, For rent, and Jungle adventure please help.