Website not working

[local301]

Hello, I was wondering how I can get my blog posts via cpanel or any other way that is not complicated.
I want to be able to download them and re-install my site. Since there are some issues with it.
My site is sergioalan.tk
Any help will be great!

 

[local301]

This site can’t be reached
sergioalan.tk’s server DNS address could not be found.

• Search Google for sergio galan tk

ERR_NAME_NOT_RESOLVED


Any help with this?

 

[caftpx10]

While I see that the name servers have been set up, I cannot say the same for the 'A' records for that domain.
https://www.whatsmydns.net/#A/sergioalan.tk