/db/apps/xmldb-intranet/xqlmod/intranet-common.xqm 1109 net.sf.saxon.trans.XPathException: The required item type of the value of variable $contents is node(); supplied expression (fn:concat(...)) has item type xs:string. Could not transform with file:///home/beheer/intranet/components/online.benjamins.com/xsl/jats-article.xsl line 1056: net.sf.saxon.trans.XPathException: The required item type of the value of variable $contents is node(); supplied expression (fn:concat(...)) has item type xs:string