CircuitWorks license error within SW

Hi fellow SW users:

I have been using the CircuitWorks add-in for some time now and every so often, I get the following error message after I invoike SolidWorks:

"Could not obtain a license for CircuitWorks.  License server does not support this feature. (-18,147, 0)"

I am currently using SW Office Premium SP05.  I sometimes will uninstall and then reinstall to reinstate CircuitWorks.  This is very time consuming as I am installing from the server via my VPN access.

Can anyone help me here?  It would be much appreciated!

Best regards,

Bill  }:-)=

SolidworksCircuitworks