rmcclarin30 there is a difference between Advanced Access Manager and add-on, like Plus Package. If you already have an active license for any premium add-on, there is no need to re-purchase any. Simply upgrade AAM to the latest version and make sure that your Plus Package is also up-to-date.
Note, if you've been using Plus Package as an extension in AAM 5, then you should be aware that all legacy AAM extensions have been converted to regular WordPress plugins.