If you used the previous version (3.0.0), just uninstall it and make sure there are no leftovers in %LOCALAPPDATA%\Programs\Enscape, then install the new version.
For:
-Archicad
-Revit
-Rhino
-Sketchup
-VectorWorks
Download Links:-
Mirror :-
https://nitroflare.com/view/69EEBA920BE204C/Enscape_3D_3.0.1_Win.rar