First off, let me say that I tried what was shown in this comment:
and it does not show the file he is referring to in my filesystem.
I also ran the
groups command as shown in this comment:
and it did not show me as in the group
Edit: when I run the command
sudo gpasswd -a $galacton vboxusers(galacton is my username) it comes up with the response
gpasswd: user 'vboxusers' does not exist