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="D37B0BFA-9FDD-11EA-AE4B-C31CB7D749F2" encoding="&#x2713;" uri="" key="login" method="post">
    <field widget="text" id="uuid-D37B3E04-9FDD-11EA-AE4B-C31CB7D749F2" attrs="" value="" name="username" key="username" display="Username"/>
    <field attrs="" name="password" key="password" display="Password" widget="password" id="uuid-D37B68DE-9FDD-11EA-AE4B-C31CB7D749F2"/>
    <field key="submit" name="submit" display="Login" attrs="" value="" id="uuid-D37B9B42-9FDD-11EA-AE4B-C31CB7D749F2" widget="submit"/>
  </form>
</response>