Not able to Add or View Pages at all

[my add]

Hello, this is my blog:
http://www.wordsnvisuals.com
The default pages – ABOUT and CONTACT are re-directing to “Sorry, the page you were looking for in this blog does not exist.”
They re-direct to http://www.wordsnvisuals.com/p/blog-page.html. Also, I am not able to find them under “Pages” to add content.

Even when I add a new page from the backend, it doesn’t reflect on the menu.
FYI, this was happening before I added a custom domain too.

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