<?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" xmlns:umbraco.contour="urn:umbraco.contour"
  exclude-result-prefixes="msxml
 umbraco.library Exslt.ExsltCommon Exslt.ExsltDatesAndTimes 
Exslt.ExsltMath Exslt.ExsltRegularExpressions Exslt.ExsltStrings 
Exslt.ExsltSets umbraco.contour ">

<xsl:output method="xml" omit-xml-declaration="yes" />

<xsl:param name="currentPage"/>

<!-- Don't change this but create a 'number' element in your -->
<!-- macro with the alias of 'numberOfItems' -->
<xsl:variable name="source" select="macro/source"/>

<xsl:template match="/">

<!-- The fun starts here -->
<ul class="agendaitems">
  
<xsl:for-each select="umbraco.library:GetXmlNodeById(1219)">
 
  
  <li>
    <a href="{umbraco.library:NiceUrl(1219)}">
      
        <xsl:value-of select="title"/>
       
 <xsl:variable name="home" select="umbraco.library:GetXmlNodeById(1219)"/>  
 <xsl:if test="$home/fotos != ''">
    <xsl:variable name="images" select="umbraco.library:GetMedia($home/fotos, 0)" />
    <img src="/ImageGen.ashx?image={$images/umbracoFile}&amp;width=135&amp;height=94" alt="image" />
</xsl:if>
   
   
   
   
    </a>
    
    
  </li>
</xsl:for-each>
</ul>

</xsl:template>

</xsl:stylesheet>

Error occured

System.OverflowException: Value was either too large or too small for an Int32.
at System.Convert.ToInt32(Double value)
at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider)
at System.Xml.Xsl.Runtime.XmlQueryRuntime.ChangeTypeXsltArgument(XmlQueryType xmlType, Object value, Type destinationType)
at System.Xml.Xsl.Runtime.XmlQueryContext.InvokeXsltLateBoundFunction(String name, String namespaceUri, IList`1[] args)
at (XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime)
at Root(XmlQueryRuntime {urn:schemas-microsoft-com:xslt-debug}runtime)
at System.Xml.Xsl.XmlILCommand.Execute(Object defaultDocument, XmlResolver dataSources, XsltArgumentList argumentList, XmlWriter writer)
at System.Xml.Xsl.XslCompiledTransform.Transform(IXPathNavigable input, XsltArgumentList arguments, TextWriter results)
at umbraco.presentation.webservices.codeEditorSave.SaveXslt(String fileName, String oldName, String fileContents, Boolean ignoreDebugging)

Why do I get an error
how to solve it