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 uri="" key="login" encoding="&#x2713;" uuid="2F1C209A-C65B-11EA-A3AA-046B1D44A1C8" method="post">
    <field widget="text" id="uuid-2F1C5862-C65B-11EA-A3AA-046B1D44A1C8" name="username" display="Username" value="" attrs="" key="username"/>
    <field name="password" display="Password" attrs="" key="password" widget="password" id="uuid-2F1C8E72-C65B-11EA-A3AA-046B1D44A1C8"/>
    <field widget="submit" id="uuid-2F1CC6BC-C65B-11EA-A3AA-046B1D44A1C8" name="submit" display="Login" value="" attrs="" key="submit"/>
  </form>
</response>