Due to API changes that were brought out, solely to counter the sheer amount of people getting silenced/banned because of other addon developers rather removing reports about bugs, then to resolve them; most rare addons lost a lot of their functionality.
With Shadowlands no longer allowing most of the dynamic functionality around sharing rares through addons, we stopped with active development of this addon.
It still works and is updated for 8.3, but that is all there will be.
If you want a proper, actively developed addon for finding rares, the (by far) best one out there is TomCat's Tours.
TomCat's Tours will also be actively developed in Shadowlands! Go download it at: