Well I just started from scratch and followed the wiki, rebooted, and everything worked great for me.
Where exactly are you seeing this error? Please try starting from scratch and following the wiki closely. Using nano is just as easy as notepad if you're remotely logged in (i.e. copy + paste); see http://info.vortexbox.org/tiki-index.php?page=Login for some good ways to remotely logged in, since I don't know if you're doing this or with keyboard and monitor.
Also post the output of these if the above doesn't work:
systemctl status couchpotato.service
ls -lh /etc/rc.d/init.d/couchpotato