I am getting the following errors in all the websites that are hosted in your server.
grandtrine.in & sportsdenvip.in
I appreciate if you'd solve this issue ASAP.
Many Chrome users facing this issue - "can't reach website" with the message showing "Unexpectedly closed the connection" or "Server DNS address could not be found" "ERR_CONNECTION_CLOSED" and took too long to respond...
The reason of the error causing some websites not loading is because of DNS lookup failed - I was also got stuck here, and then I found this tutorial showing server DNS address could not be found fix.
I got the solution by resetting, you may find something else check it