Umbraco is working fine in my local enviroment. On preproduction server we have the error message on homepage:

Error parsing XSLT file: \xslt\HomePageNavigation.xslt

So threre are no homepage navigation displayed. This error message strikes not always, and i can't find the reason. Is there any way to debug the umbraco? And is there any solution except the reinstallation of umbraco?

Here is my HomePageNavigation.xslt:

<?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: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 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"/>

   

  <!-- Input the documenttype you want here -->

  <!-- Typically '1' for topnavigtaion and '2' for 2nd level -->

  <!-- Use div elements around this macro combined with css -->

  <!-- for styling the navigation -->

  <xsl:variable name="level" select="1"/>

   

  <xsl:template match="/">

   

  <!-- The fun starts here -->

  <ul>

      <xsl:for-each select="$currentPage/ancestor-or-self::* [@isDoc and @level=$level]/* [@isDoc and string(umbracoNaviHide) != '1']">

        <li >

          <a href="{umbraco.library:NiceUrl(@id)}">

        <xsl:if test="$currentPage/ancestor-or-self::*/@id = current()/@id">

          <!-- we're under the item - you can do your own styling here -->

          <xsl:attribute name="class">selected</xsl:attribute>

        </xsl:if>

        <xsl:value-of select="@nodeName"/>

      </a>

   

    </li>

      </xsl:for-each>

  </ul>

  </xsl:template>

  </xsl:stylesheet>