Can't find the page

Hello, I was customizing my web site using your theme but i got here and i can’t find where i have to go to edit this, change the background image and the text there.

Hello,

Please see this article: https://www.support.waituk.com/hc/en-us/articles/115001345709-Search-Results-Page-Image-Header-Customization

Thank you

Thanks for your help!!