@Kuru13 : I don`t get it. You have successful installed a R2R software and activated it on your pc , and it works, right ?
You now have the stock plugins that comes with it.
You do not have a presonus account , and you will not get one ,with this software, because you are not a customer at Presonus.
If u need additional stuff for your borrowed Studio one - stay in da ZZZoooonnnee !
You do not want to get in personal Contact with the Mothership. Do you think those aliens will be friendly to you ?

As a start , you probably want to search for "Studio One Instruments Vol 5 soundsets"
because Soundsets is not included in your Studio One download.
These are some of the default soundsets for Studio One. -gets u going with the stockplugins.
you might get a creepy doll poppin up when installing the voodo-soundset,-Its harmless,
-just a gaget from the developper.
Also follow the list from Audioplg.

maybe I got your Issue wrong - if so , then forget this post.