The Guesty Booking Engine link on your listing opens a page on a guestybookings.com address, and that page does not match your HomeRunner website.
Why this happens. A page on a guestybookings.com address is a booking site that Guesty hosts on your Guesty account. It is a Guesty product and is separate from your HomeRunner website, which lives on your own domain. That is why the two look different. HomeRunner does not manage the Guesty-hosted page.
What you can do. The design of the Guesty-hosted page and the contact details in its footer are managed inside your Guesty account. Make any changes there, such as removing or correcting an address. Guesty support can point you to the exact settings screen.