Error Compiling XUpdate Query

[Marshall Rose]

can someone give me a hint as to how i can go about debugging 

    java.lang.Exception: org.apache.xindice.core.query.CompilationException:
        Error Compiling XUpdate Query

the query i'm using is:
    
    <xupdate:modifications>
        <xupdate:insert-after select="//[EMAIL PROTECTED]'anana']">
            <xupdate:element name='citation'>
                <xupdate:attribute 
name='uri'>https://anana.org/sasl</xupdate:attribute>
                <xupdate:attribute 
name='contentType'>ContentType:application/anana+xml?type="authInfo"</xupdate:attribute>
                </xupdate:element>
        </xupdate:insert-after>
    </xupdate:modifications>
    

i don't see what's wrong with this, so i must be missing something obvious.
    
anyway, is there some way i can configure xindice to crank up the
logging so i can see what i'm doing wrong...
    
thanks!
    
/mtr