[Ozzi]

The Dugi Questing Essentials is only the bare bones version of the paid guides and contains no guides.

To resolve the issue you are having with ElvUI edit DugisGuideViewer.lua

Find on Line 1094

elseif name == "ElvUI" and loaded then DugisGuideViewer.elvuiloaded = true

Replace with

--      elseif name == "ElvUI" and loaded then DugisGuideViewer.elvuiloaded = true

Save and play game.