Admin Unable to view page

I am working on a website project it is working out just fine. How ever one page (The Contacts Page) although it opens correctly to everyone who try accessing the page, whenever I try to view it whilst logged in as Administrator it starts loading indefinitely.

I can view any other page just fine, but this page I can’t neither am I able to edit its contents. This only happens when I am logged in. I can view the page only when I have logged out, as a result I can’t edit it.

What maybe the cause of this?