Menu links not working

Hello

I think maybe is the installation of dummy data doesnt work at all, I just check and there is no posts.

I installed the theme first.
Then I saw the chlid theme video, so I unistalled the theme, and installed the child theme, and de data again.
I noticed that some IDs change the secuence, so I had to reload the pages that reference those items (the slider to be concrete)

Then a friend told me not to use child themes, so I activate again the Enfold, delete the child, and import the content again.

So, I think this could be the problem.

Is the a way to install a new, fresh installation, “sequences starting in ‘1’”?

Please help

Thanks
José