Getting network Plugins to work

Hi,

I haver created a multisite using sub directories and I am wanting to have everyone with their own “sub directory cloned site” for lack of a better term, be able to access a contact management plugin I added. I created a link from a regular wordpress page to the dashboard so people could access the WP dashboard where the contact manager settings are and when a user clicks on the link it tells them they don’t have permission to view the back office/dashboard. I downloaded a plugin that allows me to unlock the contact management plugin for all sites but it doesn’t do it even though it pretends to. Any suggestions?