You have the Page ‘Hide actionbar’ attribute set to False, but when you deploy your App to the Web Client no bar is shown at the bottom of the Page?
Check that the Section attribute ‘Hide form Navbar’ is set to False. In the screenshot below, it is set to True, so the bar will be hidden at runtime.
‘Hide form Navbar’ should only be set to True when you are using ‘Stacked accordions’, where you show individual sections from one page as if they were separate pages.
The main section would have the actionbar/navbar showing; other sections wouldn’t and would have ‘Hide form Navbar’ set to True.