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 uuid="6AC0C76C-A014-11EA-99D0-FB79BCE3914D" key="login" uri="" encoding="&#x2713;" method="post">
    <field attrs="" widget="text" id="uuid-6AC0F6EC-A014-11EA-99D0-FB79BCE3914D" value="" display="Username" name="username" key="username"/>
    <field attrs="" id="uuid-6AC128EC-A014-11EA-99D0-FB79BCE3914D" widget="password" display="Password" key="password" name="password"/>
    <field value="" widget="submit" attrs="" id="uuid-6AC15F06-A014-11EA-99D0-FB79BCE3914D" display="Login" key="submit" name="submit"/>
  </form>
</response>