If you've not used it then uninstall the module and re-install. The this version of the store tries to upgrade settings and looks like something is going wrong, impossible to say what without more info.
However I suggest that if you're starting again, don't use this version of NBS, it will be closed off. Use this version
https://nbrightbuy.codeplex.com/
http://www.nbrightproject.org/
However I suggest that if you're starting again, don't use this version of NBS, it will be closed off. Use this version
https://nbrightbuy.codeplex.com/
http://www.nbrightproject.org/