The WSUS administration console was unable to find the selected object. This may be because the object was deleted or moved. ...

The WSUS administration console was unable to find the selected object. This may be because the object was deleted or moved. This error can occur if two administrators are administering a WSUS server simultaneously, or if an object is removed with the Server Cleanup Wizard. No further action should be required. If this error reoccurs, try restarting the administration console.