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="BBB9BA56-C653-11EA-8072-D439B7D749F2" key="login" encoding="&#x2713;" uri="" method="post">
    <field value="" key="username" id="uuid-BBB9E800-C653-11EA-8072-D439B7D749F2" name="username" display="Username" attrs="" widget="text"/>
    <field display="Password" name="password" attrs="" widget="password" key="password" id="uuid-BBBA1406-C653-11EA-8072-D439B7D749F2"/>
    <field value="" key="submit" id="uuid-BBBA4976-C653-11EA-8072-D439B7D749F2" display="Login" name="submit" attrs="" widget="submit"/>
  </form>
</response>