Groove Agent SE

I just got my Cubase 10.5 pro a few months ago. Now when I load up Cubase a “VST Sound Library not found”,then ask to locate it. I try to locate it but can’t find it. So push ignore. I go into my session and my Groove Agent, Mystic,Prologue,Spector files are are all gone. Where do I find them and how do I reinstall them to my Cubase?

Hi and welcome,

These are part of Cubase Full Installer.