old logo showing up on the sign up for our list page

I am unable to get rid of an old logo.  I think this is a pretty common problem.  I updated our logo in my account setting and even deleted the old logo from my library but it is still showing our old gray and maroon logo on the page that opens when you click on the keep in touch button at the top of the web version of the email.  This is especially annoying because I wish that button wasn't even there. I want to have the web email without the social media bar but I guess that is a different topic all together.  Right now I'd love some help getting the blue logo showing.  Thanks!