“It works!” DesktopServer not working solution for Apache on Mac

I am not sure what I did to cause this problem, but recently, all of my DesktopServer server sites, including localhost began displaying the message: “It works!”

I contacted the lovely folks at DesktopServer and got this quick fix (for Macs):

This solved the problem and I’m back up and running.  Since I couldn’t find the solution online before I contacted support, I thought I would share 🙂