oops

I have made changes on my store. When using my website, the links go to a page that says "oops, this page cannot be displayed." Also, I would like to know how to change the headline image where it say "your store."

Can you post your URL? Is it all links or links you added to a page. If you added them to a page, then maybe you forgot the http://?

If you are using the default template, the logo image is located at /catalog/template/default/image/logo.png