I get the following error:
javax.servlet.ServletException: Cannot find a matching 1-argument function named {http://exslt.org/dynamic}evaluate() at org.apach
Somewhere in your XSLT you're referring to a function named "{http://exslt.org/dynamic}evaluate()" and you're not giving it the number of arguments it expects.
Or... it's unable to find the extensions you're adding.