Which one is correct?
page has not updated
page has not been updated.
There are slight nuances to the different words. Both implicitly place "blame" and the nuance indicates where.
The page has not updated.
This places the "blame" on the page or the system itself. It's pretty neutral. "Oh! the page hasn't updated. We've done what we ought, but the page hasn't kept up."
The page has not been updated.
This places the "blame" on the content administrator. It is a little more apologetic. "Oh! we didn't update this page. It might be that we don't have anything new to say or we just weren't able to get around to it."
Which makes more sense? In the future, this would be a better fit for the UX SE site
I think both should have a "the" in front of them. However both should be correct. I hope I helped. :)