Want to reactivate Membership, but without old settings.

I want to reactivate Membership, however I do not want the settings I had selected prior to disabling the plugin. I believe I had somehow created a situation in which I lost my own admin privileges in Membership prior to disabling all of my plugins and reinstalling WP. My goal is to reactive, but to be able to start setting up access and membership levels from scratch. Any advice would be most welcome.