in our plugins for the Membership premium plugin version

hello, in our plugins for the Membership premium plugin version 3.5.1.5, when we click the link below loggedin to wpmudev or not we get a 404 error. we are just trying to upgrade it to update it.
There is a new version of Membership Premium available on WPMU DEV. View version 3.5.3.3 details or upgrade to update.