Hi Nazik,
Be sure that in the properties of the page, under general > layout type you have ‘default’ layout selected instead op ‘pop-up’.
Thank You very much Sjors Schultz for helping me.
In my new created page, that was default page for Phone Web Offline, I had to created with layout PopupLayout(Atlas_UI_Resources), because I had only this layout.
and now I have this parameters in my page properties-
General
Platform` Web
Layout type` Responsive
Layuot` Atlas_Default(Atlas_UI_Resources)