Edit “Get A Quote” Button

This theme comes with a button in the navigation bar “Get a Quote” on the top right of the page.

I have been unable to modify this button (add a working link, change the text) and cannot determine if it is a widget or some other function. I am editing the page in Elementor, and the navigation bar is not editable. There is no option to edit (or remove) the button in Customize menus. Does anyone have an idea where there might be a menu, or which file can be edited for the link? All i’ve been able to do is add custom CSS to color it.

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