Hi all, new to umbraco here and trying to figure out why my tags aren't working.

I made a contentstructure on which I have a articles about 'country' which contain many 'communities' (so communities are children of countries).

Elsewhere on the site I have Newsposts which can be tagged with a country so I can find similar stories.

Up till recently I could find newsposts from similar countries by using the following macro:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE xsl:stylesheet [ <!ENTITY nbsp "&#x00A0;"> ]>
<xsl:stylesheet 
  version="1.0" 
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 
  xmlns:msxml="urn:schemas-microsoft-com:xslt"
  xmlns:tagsLib="urn:tagsLib"
  xmlns:umbraco.library="urn:umbraco.library" xmlns:Exslt.ExsltCommon="urn:Exslt.ExsltCommon" xmlns:Exslt.ExsltDatesAndTimes="urn:Exslt.ExsltDatesAndTimes" xmlns:Exslt.ExsltMath="urn:Exslt.ExsltMath" xmlns:Exslt.ExsltRegularExpressions="urn:Exslt.ExsltRegularExpressions" xmlns:Exslt.ExsltStrings="urn:Exslt.ExsltStrings" xmlns:Exslt.ExsltSets="urn:Exslt.ExsltSets" 
  exclude-result-prefixes="msxml tagsLib umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings Exslt.ExsltSets ">
<xsl:output method="xml" omit-xml-declaration="yes"/>

<xsl:param name="currentPage"/>
    
<xsl:variable name="location"  select="$currentPage/location" />

<xsl:template match="/">
  <xsl:if test="$location">
    <div class="more-news">
      <h4>More news from <span class="capitalize"><xsl:value-of select="$location"/></span></h4>
      <ul>
        <xsl:for-each select="tagsLib:getEverythingWithTags($location)/root/node">
          <li><a href="#"><xsl:value-of select="@nodeName"/></a></li>
          <xsl:value-of select="@nodeUrl"/>
        </xsl:for-each>
      </ul>
    </div>
  </xsl:if>

</xsl:template>

</xsl:stylesheet>

However. I just set up the content structure with Countries containing many Communities. And now the tags system breaks the moment I assign a country with a tag.

On the page it says Error parsing XSLT file: \xslt\SidebarCountryNews.xslt 

and when I try to save the macro it throws me the following error:

System.InvalidCastException: Unable to cast object of type 'umbraco.cms.businesslogic.CMSNode' to type 'umbraco.cms.businesslogic.Content'. 

Any suggestions I could go about debugging this?

Running Umbraco 4.7.1