Space beneath header

Good morning all

I have a small issue and sure hope someone could help me out, I’m using the Vantage theme, but for some reason, I cannot figure how to remove that empty space under the header menu, I have provided a link to an image to have a good ideal of that what I mean,

https://pactgold.com/wp-content/uploads/2020/06/Untitled.png

I want to be able to remove that blue space that is right under the header/menu with arrow pointing at it.

once again, thanks for ya help, much appreciated.

The page I need help with: [log in to see the link]