Have you run into an issue where the Avada Builder is suddenly missing from your pages and posts?  It happened to me, and I couldn’t find what the heck had happened.  I’ll make this quick because I know you need to get back to work.  Try looking at the right pane.  Mine was suddenly at the very bottom of the right side.  Just drag and drop it where you need it. I’m probably just like you – I don’t remember putting it there…

In my searches, I found a lot of people with this same issue but no solutions.  I hope this helps.