Strange "/old" folder in "/"


Our site has been broken down, access the site will get a strange error

That’s impossible that it access the

[quote]/cgi-system/php5.cgi/index.php[/quote] in php5 not my [quote]$home/mysite/www/index.php[/quote], I check the DH’s Panel, nothing changed.

And I found a strange folder “/old” in the root file system, there are almost a complete OS in that folder, in current “/” there is no the directory “/dh”, I do not know whether the DH is upgrading the OS now or handling the other stuff to my site.

If anybody could help us that would be great, thanks very much !