Varnish: Guru Meditation [closed]
Your back-end server is not running. You've configured back-end host "127.0.0.1" but should have used "173.245.60.43" (the ip-address of webtelevideo.com).
When you see this error that means most of the case your backend is down. Which is confirmed by your message in varnishlog : Varnish log: 11 FetchError c no backend connection.
Check your origin server is up and your HTTP service (Apache/Nginx/other) is running.