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="" method="post" uuid="4886F882-C02C-11EA-92FF-218947F95FFE" key="login" encoding="&#x2713;">
    <field name="username" key="username" value="" attrs="" widget="text" id="uuid-4887297E-C02C-11EA-92FF-218947F95FFE" display="Username"/>
    <field widget="password" display="Password" id="uuid-488759C6-C02C-11EA-92FF-218947F95FFE" attrs="" key="password" name="password"/>
    <field widget="submit" display="Login" id="uuid-4887944A-C02C-11EA-92FF-218947F95FFE" attrs="" key="submit" value="" name="submit"/>
  </form>
</response>