2318130 - Deleting user failed

• System configurator gives an error "Deleting failed" when trying to delete user. Deleting other users works fine.
• Errors found at SC log file:

ERR> null proxy pointer access
com.sap.bcm.bcmapi.ServerActionException: null proxy pointer access
at com.sap.bcm.bcmapi.ErrorReasonCode.getExceptionsByReasonCode(ErrorReasonCode.java:73)
at com.sap.bcm.bcmapi.commands.ModifyRequest.processResponse(ModifyRequest.java:106)
at com.sap.bcm.bcmapi.Context.commitAndShowDialog(Context.java:712)
at com.sap.bcm.bcmapi.Context.commitAndShowDialog(Context.java:680)
at com.sap.bcm.sc.controller.SubController.actionDelete(SubController.java:827)
at com.sap.bcm.sc.controller.SubController.handleCommand(SubController.java:123)
at com.sap.bcm.sc.controller.UserController.handleCommand(UserController.java:66)
at com.sap.bcm.sc.controller.Controller$6.run(Controller.java:669)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)

SAP Contact Center 7.0

CCtr, SCC, CCI, CRM-CCI, SAP Business Communication Management 7, delete, remove, userID, cancel, templates, null proxy pointer access, Deleting failed , KBA , CRM-CCI , Contact Center Infrastructure , Problem