Upgrade to v70 from v67 - DNS broke?

During the upgrade I was getting:

sudo: unable to resolve host XX.XX.XX: Temporary failure in name resolution

a few times and now on the status page (Loads very slowly):
xx.xx


DNSSEC ‘DS’ record is set correctly at registrar. (Records using algorithm other than ECDSAP256SHA256 and digest types other than SHA-256/384 should be removed.)

:heavy_multiplication_x:
The nameservers set on this domain are incorrect. They are currently [timeout]. Use your domain name registrar’s control panel to set the nameservers to ns1.mail.xx.xx; ns2.mail.xx.xx.

:heavy_multiplication_x:
This domain’s DNS MX record is not set. It should be ‘10 mail.xx.xx’. Mail will not be delivered to this box. It may take several hours for public DNS to update after a change. This problem may result from other issues listed here.


Domain is not blacklisted by dbl.spamhaus.org.

:heavy_multiplication_x:
This domain should resolve to this box’s IP address (A xx.xx.xx.xx) if you would like the box to serve webmail or a website on this domain. The domain currently resolves to [timeout] in public DNS. It may take several hours for public DNS to update after a change. This problem may result from other issues listed here.

:heavy_multiplication_x:
www.xx.xx: This domain should resolve to this box’s IP address (A xx.xx.xx.xx) if you would like the box to serve webmail or a website on this domain. The domain currently resolves to [timeout] in public DNS. It may take several hours for public DNS to update after a change. This problem may result from other issues listed here.

:heavy_multiplication_x:
autoconfig.xx.xx: This domain should resolve to this box’s IP address (A xx.xx.xx.xx) if you would like the box to serve webmail or a website on this domain. The domain currently resolves to [timeout] in public DNS. It may take several hours for public DNS to update after a change. This problem may result from other issues listed here.

:heavy_multiplication_x:
autodiscover.xx.xx: This domain should resolve to this box’s IP address (A xx.xx.xx.xx) if you would like the box to serve webmail or a website on this domain. The domain currently resolves to [timeout] in public DNS. It may take several hours for public DNS to update after a change. This problem may result from other issues listed here.

when I do host domain: communications error to 127.0.0.1#53: timed out

Note this server is not hosted on a VPS as its a VM on at my hosted server at a DC.

any ideas?

Thanks!