Change the link logo - Donation forms

@Ysandra Rodrigues That can be a tricky question. Sharing thoughts in order of most likely to least likely:

The link & image are in your page wrapper. If you are not an advanced site admin, you might not have access to edit page wrappers. But you can ask support for that access if you are comfortable with html.

The link & image could also be in a reusable as part of a page wrapper. You would see the reference to this in your page wrappers, but you could also search your page builder library.

Finally, the link & image could be hard coded into the page you are wanting to edit.