Hi Sehyo,
Baskerville hides the sidebar widget areas but displays the footer widgets on mobile/tablets. The easiest route would be to add the widgets you want displayed on mobile in both the footer and sidebar.
If you want to display the sidebar, you would have to override some code in style.css starting at @media (max-width: 1000px) as well as add some code of your own to make sure that the sidebar is styled properly. To get you started, you can install a custom CSS plugin and enter the following code:
@media (max-width: 1000px) { .sidebar { display: block; } }
That way, the sidebar will be displayed on mobile, but you will need to add additional code in order to make it play nicely with the structure of the theme.
— Anders
