Issues installing Sentora on Ubuntu 14.04

[Protoscribe]

Hi guys/gals

So like I am having an issue installing Sentora on my VPS hosted by Crissic Solutions, LLC. I had used my server as a web server previously to installing a clean minimal 14.04, so I know my domains were working and propagated.

So now during the install when I get to the FQDN and I place it in and hit enter it comes up with this error:
/dev/fd/63: line 97: host: command not found
The subdomain sub.domain.com have no IP assigned in DNS
You must add a A record in the DNS manager for this subdomain and then wait until propagation is
done

Could someone please help me with this error as it is frustrating me?

Thanks in advance...