The definition of the namespaces 'portal' and 'portal talk' does not exist on the Javanese Wikipedia (jv.wikipedia.org), and needs to be created, either changing the variable $wgExtraNamespaces (https://www.mediawiki.org/wiki/Manual:$wgExtraNamespaces) to accommodate portals and creating a new namespaces called Portal (in Javanese - Gapura) and Portal talk (in Javanese - Parembugan Gapura), or by linking the definition of the English namespace 'Portal' (whose namespace code is 100 in Wikipedia) to an Javanese translation.
Could someone help with creation of portal and portal talk namespaces on Javanese Wikipedia?