Yes, Perl and IO::Scalar was installed, and correctly, since I did the check ('Installed' whatever, from the tutorial) and it was working from before when I ran the server a while back.
What I did was reran the install IO::Scalar command, which updated a couple things from what I saw. May have accidently gotten deleted, I don't know. But it's fixed, and my server works now, with Perl.
Thank you though.