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" uri="" encoding="&#x2713;" uuid="0B10717E-A01D-11EA-B4DE-F77B47F95FFE" key="login">
    <field widget="text" id="uuid-0B10A0CC-A01D-11EA-B4DE-F77B47F95FFE" key="username" attrs="" value="" display="Username" name="username"/>
    <field attrs="" id="uuid-0B10CD4A-A01D-11EA-B4DE-F77B47F95FFE" key="password" widget="password" name="password" display="Password"/>
    <field value="" display="Login" name="submit" widget="submit" key="submit" id="uuid-0B1100D0-A01D-11EA-B4DE-F77B47F95FFE" attrs=""/>
  </form>
</response>