These keys are defined in WikiManager.Translations page provided by xwiki-platform-wiki-ui-mainwiki XAR extension. You should first check if this extension is installed on the main wiki. Then you should check if this page is present. If the extension is installed and the page is present then see if a server restart fixes the issue. If not, then see if the last author of this page has Programming Rights. This page uses a XWiki.TranslationDocumentClass object to ensure that the translation keys are registered automatically. This object has a scope property. The higher the scope the more rights are required from the last author of the page. By default it has GLOBAL scope, which requires PR. You could also lower the scope to current wiki, for which you only need admin right. Hope this helps, Marius On Thu, Jul 17, 2014 at 3:21 PM, Moens Patrick <Patrick.Moens(a)curia.europa.eu> wrote: