I can’t find parts of my theme to make edits

I am relatively new to WordPress. I took a new job and have been editing our website but there are things I can’t seem to find access to. For example, at the bottom of each page we have a contact form for people to sign up for our newsletter. I want to change the text above it that says “We’ll scratch your back if you’ll scratch ours” but I can’t find where to edit it. I know it’s not part of the contact form, it is found elsewhere. It also isn’t on any of the pages. I’m guessing it is part of the theme but I don’t know where/how to search for it once I’m in the editor and that is a LOT of code to look through for a couple lines of text.

• This topic was modified 4 years, 10 months ago by Jan Dembowski.

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