Try disabling it. This is likely the reason, especially if you don't see a "login" button.
In Facebook, make sure that NetworkedBlogs is not in the list of blocked apps. Click here to see your blocked apps.
Try accessing this page with a different browser. If it works, then there's something in your extensions or settings that is causing the issue.
If that doesn't fix it, use the chat box on this page to contact us.