Org-ref cannot tell that I have
Is this because of some packages that I missed?
This means that the command
kpsewhich biblatex-caspervector.bst returned a non-zero status. That just means that command doesn't know where that bst file is, or that it doesn't exist. If your latex file builds fine, then it is not a problem. If it doesn't build and use that style, then it is not installed in a way that latex can find it.