Is it possible for you to provide us with the back end and FTP access to your site to check on this issue? You may store your site access at http://stackideas.com/dashboard/site so you don't have to provide these information all the time
I just tried to login to your back end and it isn't working, http://take.ms/htMCw . The FTP access seems to be working fine though. I have applied some fixes for you on your site, can you give this a try again?