As Raise Mag is Blogging theme we do have special widget ready for Raise Mag.
You can add a widget for footer from Dashboard > Appearance > Widget
Available special footer widget is as follows:
Footer Text & Footer Social Links can be edited and enable from WordPress Dashboard > Appearance > Customizer > Footer Section.
You can also select the footer style to either “Dark” or “Light” which is available on Pro version. Footer Navigation Menu can be added from WordPress dashboard > Appearance > Menu.