System.Xml.Xsl.XslLoadException: XSLT compile error. An error occurred at db://moses/GetSocietyStylesheet/steuerkanzlei-kern(30,190). ---> System.ArgumentException: An item with the same key has already been added.
   at System.ThrowHelper.ThrowArgumentException(ExceptionResource resource)
   at System.Collections.Generic.Dictionary`2.Insert(TKey key, TValue value, Boolean add)
   at MMK.Xml.XmlDbResolver.GetParameters(DbUri dbUri, SqlConnection connection)
   at MMK.Xml.XmlDbResolver.GetDbRessourceAsStream(DbUri dbUri)
   at MMK.Xml.XmlDbResolver.GetEntity(Uri absoluteUri, String role, Type ofObjectToReturn)
   at System.Xml.Xsl.Xslt.XsltLoader.CreateReader(Uri uri, XmlResolver xmlResolver)
   at System.Xml.Xsl.Xslt.XsltLoader.LoadStylesheet(Uri uri, Boolean include)
   at System.Xml.Xsl.Xslt.XsltLoader.LoadStylesheet(XmlReader reader, Boolean include)
   --- End of inner exception stack trace ---
   at System.Xml.Xsl.Xslt.XsltLoader.LoadStylesheet(XmlReader reader, Boolean include)
   at System.Xml.Xsl.Xslt.XsltLoader.Load(Compiler compiler, Object stylesheet, XmlResolver xmlResolver)
   at System.Xml.Xsl.Xslt.Compiler.Compile(Object stylesheet, XmlResolver xmlResolver, QilExpression& qil)
   at System.Xml.Xsl.XslCompiledTransform.LoadInternal(Object stylesheet, XsltSettings settings, XmlResolver stylesheetResolver)
   at MMK.MoSES.Components.Transformers.XsltTextTransformer.Consume(Object data)
   at MMK.MoSES.Components.Aggregators.XmlAggregator.Generate()
   at MMK.MoSES.Components.Aggregators.XmlAggregator.Consume(Object data)
   at MMK.MoSES.Components.Generators.XhtmlIndexPageGenerator.Generate()
   at MMK.MoSES.Pipeline.Execute()
   at MMK.MoSES.Cocoon.ProcessRequest(HttpContext context, String reqURL)