Post question

What theme are you using?
Downloaded from?

http://codex.wordpress.org/Forum_Welcome#Include_as_Much_Information_as_Possible

Sorry, there is no such theme in the https://wordpress.org/themes/ directory.

Also, there is no such plugin in the https://wordpress.org/plugins/ directory.

– For pro or commercial product support please contact the author directly on their site.
– As the author is aware, commercial products are not supported in these forums. As you are their customer I am sure they will have no problem supporting you there. It also allows the developers to be aware of issues with their code.

This CSS will hide the post meta

.post-meta { display: none; }

To add CSS:

• If you are using WordPress 4.7, use the “Additional CSS” option in the customizer.
• If your theme has a custom CSS option, use that to add the CSS shown above.
• If not, install the plugin Simple Custom CSS.

Learn to use the Chrome Developer Tools to help you see and test changes to your CSS.