Error Inspector

[EmmettMadeson]

For some reason the error inspector tool is greyed out as if I only have a Basic license, but I have an Advanced license. How can I make it usable?

[Robert_LeClair]

Have you validated the geodatabase topology and added it to the dataframe with the feature classes participating in the topology?  Please advise.

[JoãoTomás]

I also have the same error, cant fix it. It all started when i reinstalled windows and installed arcgis again. I do the topology corectly but the error inspector doesnt work, although my errors are shown 

[AbdullahAlZahid]

I am also having the same issue!