Error trying to submit .Page file

Denise Bowker

While trying to run the OOTB "Push LiveSite Content" workflow on a .page file I get an error (see below) after the cleanup phase.

The error is:
LSCS StartDeployment: Error while deploying to LSCS.Please look for content center logs for more details.

The content center log has:
2011-05-19 10:32:13,892 [http-0.0.0.0-8080-12] ERROR com.interwoven.livesite.workflow.modeler.UsersWithRolesDataSource () - execute: error while communicating with teamsite, unable to populate user map.
com.interwoven.cssdk.access.CSInvalidUserException: (No such user)

Any guesses?