Ok, I've restarted it.
The vm had died, not sure why yet.
Looking at the logs, someone has been running some sort of injection tool against the site, on the mistaken assumption that we are running php but I don't know why that has given us problems yet. 
Russell 

POST /wp-login.php HTTP/1.0
Host: selflanguage.org
X-Forwarded-For: 199.96.156.87
Connection: close
Content-Length: 38
User-Agent: Opera/9.80 (Windows NT 6.1; WOW64) Presto/2.12.388 Version/12.14
Accept: text/html, application/xml;q=0.9, application/xhtml+xml, image/png, image/webp, image/jpeg
, image/gif, image/x-xbitmap, */*;q=0.1
Accept-Language: en-EN,ru;q=0.8,en;q=0.7
Referer: http://www.google.com/
Content-type: application/x-www-form-urlencoded

No 'last' slot found in nil.
To debug in ui2, type:      selfProcessModel debugProcess: 440 as
to debug in console, type:  attach: 440
to dump stack, type:        440 as printError.

Internal error: signal 11 code 1 addr 0x4 pc 0xf72fb999.

VM Version: 4.1.13, Sun 02 Feb 14 03:35:02 Linux i386 (4.5.0-10-ge9892ac)

On 28/09/2014, at 12:31 AM, "David Graham dgraham@unthinkable.org [self-interest]" <self-interest@yahoogroups.com> wrote:

 

Hi all,
Sorry to spam the list, but the main website has been down since yesterday.