Remove White Space on Footer

Hi there.

I'm using the "Connections" theme and have not changed the footer design. However, if you see here: https://www.forgettingfairytalescoaching.com the white part of the footer design is making it look like there's a blank space before the page finishes, so I need to either be able to delete this, or change the colour of it, but I can't see how.

I like the arrow it creates into the pink. But do you know where I edit it please?

Thanks,
Ella