How to Remove Web Developers Link from Footer?

Site URL: https://jgchiropractic.com/

Hi All,

The web developer placed their link in our footer, then disappeared off the face off the earth without completing what we paid him to do.

Now I find all his links are broken. 

I need to remove his link from my pages, but don't see it in the WYSWIG style editor that Squarespace offers.

Any idea how I can remove?

Thanks!

Hi. Where is link?