Blank Blog

Yes it has been set to show 40 posts on the page at a time and has been this way since the blog was first created almost two years ago.
Two weeks ago when I signed in to blog i went directly to the blog itself as i normally do and there appears to be this huge black square that is hiding my entire blog including both left and right panels and my top menu bar??? The only thing that is appearing for me is the title of my blog. The bar above my title which has the name of my blog is there and i can click on that and post still and after i post i see it . but as soon as i go back to the main page to see it , that black square hiding everything appears again..

https://www.facebook.com/pages/GreatcatsoftheWorld/364092233663682

http://greatcatsoftheworld.wordpress.com/