JDI: ERROR: update CMS while TRACK development

hello

i am configurinthe track for NW04 SP16 EP environment

while update cms phase m getting the below error

Unexpected error; inform your system administrator: < Localization failed: ResourceBundle='com.sap.cms.util.exception.CMSExceptionMessages', ID='SLD name-server configuration error', Arguments: [] > : Can't find resource for bundle java.util.PropertyResourceBundle, key SLD name-server configuration error

CMSUSR credentials are tested & are fyn

but getting error while saving & updating CMS

kindly help

regards

shoeb