I was just about ready to start cussing, then I finally found a thread over at the official forum that got me back. I suggest bookmarking this or copying the instructions to a text file.
https://forums.flightsimulator.com/t/fix-for-gray-out-marketplace-after-1-9-3-patch/291614
https://forums.flightsimulator.com/t/fix-for-gray-out-marketplace-after-1-9-3-patch/291614