LS/SSL certificate issue

Hi everyone,
after the installation of mailinabox, the self secured ssl is not working and below is the issues is showing on my admin dashboard.
Pls guys i will love to be helped on this issues and get it resolved.
Thanks in Ad.

Domain Certificate Status Actions
box.hippoel.info Self-signed. Get a signed certificate to stop warnings. The domain name does not resolve to this machine: [Not Set] (A), [Not Set] (AAAA).

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The certificate provider will then provide you with a TLS/SSL certificate. They may also provide you with an intermediate chain. Paste each separately into the boxes below:

TLS/SSL certificate:

-----BEGIN CERTIFICATE-----
stuff here
-----END CERTIFICATE-----

TLS/SSL intermediate chain (if provided):

-----BEGIN CERTIFICATE-----
stuff here
-----END CERTIFICATE-----
-----BEGIN CERTIFICATE-----
more stuff here
-----END CERTIFICATE-----

After you paste in the information, click the install button.

Assuming that your DNS is set up correctly and propagating … you should get a blue “Provision Now” button on this page … that should be the only thing you’re concerned with.

You have DNSSEC enabled at your domain registrar. Disable it.