Small Problem To HUGE Problem

We have a very active blog, and for whatever reason, today it is not reachable in anyway shape or form, ( i think it has to do with “misc->settings->image directory” but im not sure… I can’t even login now, I don’t know what happened (if you look at https://www.FreestyleMadness.com/blog) you can see what i’m talking about.

The requested URL /blog/ was not found on this server.
Apache/2.2.3 (Debian) PHP/5.2.0-8+etch11 proxy_html/2.5 Server at https://www.hhb.org.uk Port 80 is the error that shows up, Need to get this fixed asap, will pay for the help if needed. This needs to be fixed asap, we have over 6,000 posts and our last backup is quite some time back.