Version of dscore FAIL 500 Internal Server Error

Hi,

I have PP2021 installed in all the machines of a small cluster with a SGE queuing system and my workstation is configured to use a head node as PP server that by default sends all jobs to the sge queue. This setup has been running nicely for months but now I am finding that something is broken and I cannot start any job anymore. When I run the Test using the head node as "Server name" from the "Change Server" menu I get an OK for everything except for the "Version of dscore", which fails with the above message. I browsed through the PipeLine Pilot Administration web page but I could see anything wrong anywhere. Any suggestion to solve this would be much appreciated.

Jordi