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="" encoding="&#x2713;" key="login" method="post" uuid="20C45B5E-2000-11EA-A0FC-740E4A0E2E26">
    <field widget="text" key="username" value="" attrs="" display="Username" id="uuid-20C48EBC-2000-11EA-A0FC-740E4A0E2E26" name="username"/>
    <field display="Password" attrs="" widget="password" key="password" name="password" id="uuid-20C4C5B2-2000-11EA-A0FC-740E4A0E2E26"/>
    <field name="submit" id="uuid-20C4F780-2000-11EA-A0FC-740E4A0E2E26" display="Login" value="" attrs="" key="submit" widget="submit"/>
  </form>
</response>