Why can't my other site page be added to my Blogger site navigation?

Question

Google Blogger

Hello, I want to add a contacts section to the site menu, but I ran into a problem that it simply is not added, I click the save button and nothing happens.

Answer 1

There 's an error on the side of Blogger itself. The developers are already aware, we are waiting for the fix.

Answer 2

now the save button does not work again (since December 1). Why?