Game bug for Get To Work

I tried to load my game and got a notification on the loading screen that the add-on "Get To Work" was not installed. When I played the game the day before, everything worked just fine. I tried to repair the defect first and when that did not work, I uninstalled then reinstalled the add-on. When it still did not work, I uninstalled the entire game, then reinstalled everything again. When I went to start the game, I still had the same issue that the game was not recognizing that the add-on "Get To Work" was installed.  I am unsure what I can do at this point now.