Hi Mike,
Thanks for reaching out.
Did you mean to install the purea magazine theme and the pro plugin again?
If yes then, you can install the theme from Appearance -> Themes -> Add New and then search for Purea Magazine in the search bar
Once installed and activated, you can download the pro plugin from the email you have got from Freemius when you purchased the license.
Upload this plugin through Plugin -> Add New -> Upload Plugin and insert the license.
Let us know if you have any questions
Best Regards
Best Regards