Responsive options

Possible responsive options for Footers

Switch Sub Footer area on or off for devices

Theme Options → Design → On / Off → Sub Footer

Switch Sub Footer to relative mode if using Fixed mode

Theme Options → Global → Footer → Layout → When to convert Sub Footer to relative

Convert columns for widget areas

Theme Options → Global → Footer → Footer widgets → Above Footer widget area layout / Footer widget area layout → Columns convert

Still having trouble? Head over to the forums.