The images which you are using for slider and innarpage banner is not loading properly.
Please re-upload the images for slider and innerpage banner.
Go to the Appearance -> Theme Options -> homepage Slider -> Slider Image -> upload new image
Use the images which is uploaded on your website http://www.numberoneweb.co.uk/
To change the footer menu color
Go to the Appearance -> Theme Options -> Basic Settings -> Font Colors -> Select font color for footer title
Please check the documentation to customize the theme
If you are still getting any problem, please send WordPress admin login details for temporary at [email protected] so we can check and assist you quickly.