Screen sharing in Skype for Business

I use Skype for Business daily, and until today have had no problem screen sharing. Today however I get a message saying I need to go to my Privacy settings and enable screen sharing. However, when I go to Privacy, I don't see that option. From what I can tell this seems to be a common issue once people have upgraded to Catalina, but I am still using Mojave.

Any ideas on how to fix it?