Can't create job for the server?

Hi All, 

I am getting this strange error message and I don’t know what to make of it. I open the visualiser, load an Al system, and try to start a geometry optimisation calculation and I am greeted with the message:

“Can’t create job for the server: CASTEP.

This computer was unable to communicate with the computer providing the server.”

This has just suddenly started happening over the weekend and I have no idea what has caused this. I also tried running a Forcite calculation and I got the same error.

“Can’t create job for the server: forcite.

This computer was unable to communicate with the computer providing the server.”

I am running this on my local machine so I have no idea what could have caused this? If anyone has encountered anything like this before I could really use some assistance.

Best wishes

James