My Sims expansion pack has disappeared after reinstallation

[Thombears]

Bought Sims 3 with Late Night expansion in 2014. Installed other expansions from discs, works perfectly except Late Night has disappeared. Please help.

[puzzlezaddict]

@Thombears  Did you install Late Night from disc too, or from Origin?  If you run the game through Origin, please repair the game: open your Origin game library, right-click on the Sims 3 icon, and select Repair.  If that doesn't help, try clearing Origin's cache:

https://help.ea.com/en-us/help/faq/clear-cache-to-fix-problems-with-your-games/