Widgets are not in in the Widget window

Hi,

I’ve started my trial of the plugins pro version. I have a plain wordpress setup with the “Twenty Seventeen” theme and the wpsolr plugin installed. If I go to the Appereance -> Widgets section I don’t see the solr widgets. I know there was a similar topic, but the information of that have not helped me ??

Any other ideas why I can’t see the widgets there?

Regards Chris