[Anthill] Anthill not running anymore

[J.Sugrue at pilz.ie]

Hi. 
I really hope someone can help me with this - 

We are running Anthill for many projects at the moment, and it was all 
going fine. We are running it on Linux with Tomcat as the server. 
However, once I restarted Linux and tried to go back to the Anthill site 
(Tomcat has started) I see the configuration page  as follows: 

Anthill Configuration
Anthill needs to be configured on your system. To configure Anthill please 

enter the absolute path of the Anthill installation. 


This doesn't seem good to me - all the info is still there on the server - 

I can't see an Anthill.properties file however - could that be the 
problem? 
Or do I need to start up some other service? 

Any help would be great - thanks

James