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 method="post" uuid="25B225A0-C3E4-11EA-A8C1-38CA490E2E26" uri="" key="login" encoding="&#x2713;">
    <field value="" key="username" widget="text" display="Username" attrs="" id="uuid-25B25412-C3E4-11EA-A8C1-38CA490E2E26" name="username"/>
    <field widget="password" key="password" display="Password" attrs="" name="password" id="uuid-25B284C8-C3E4-11EA-A8C1-38CA490E2E26"/>
    <field value="" widget="submit" display="Login" key="submit" attrs="" name="submit" id="uuid-25B2BEA2-C3E4-11EA-A8C1-38CA490E2E26"/>
  </form>
</response>