Dns is error
INFO NS records at parent servers Your NS records at the parent servers are:vn6.hostdomainvn.com. [NO GLUE; No A record]
vn5.hostdomainvn.com. [NO GLUE; No A record]
[These were obtained from tld6.ultradns.co.uk]
Why it is error?
FAIL NS A timeout occurred getting the NS records from your nameservers! None of your nameservers responded fast enough. They are probably down or unreachable. I can't continue since your nameservers aren't responding. If you have a Watchguard Firebox, it's due to a bug in their DNS Proxy, which must be disabled. .