XSLT Error

    Empty filename at /home/ubuntu/perl5/perlbrew/perls/perl-5.18.0/lib/site_perl/5.18.0/Chameleon5/Template/XSLT.pm line 575.
    

Response XML

<?xml version="1.0"?>
<response>
  <form encoding="&#x2713;" uri="" method="post" uuid="C6AA167C-C031-11EA-9272-0B6CBCE3914D" key="login">
    <field attrs="" name="username" widget="text" id="uuid-C6AA4B10-C031-11EA-9272-0B6CBCE3914D" display="Username" value="" key="username"/>
    <field attrs="" name="password" widget="password" display="Password" id="uuid-C6AA8044-C031-11EA-9272-0B6CBCE3914D" key="password"/>
    <field id="uuid-C6AABA64-C031-11EA-9272-0B6CBCE3914D" display="Login" value="" key="submit" attrs="" name="submit" widget="submit"/>
  </form>
</response>