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="66999B1C-9FDA-11EA-9B74-1C8A1D44A1C8" uri="" method="post" key="login" encoding="&#x2713;">
    <field id="uuid-6699DC4E-9FDA-11EA-9B74-1C8A1D44A1C8" value="" key="username" widget="text" display="Username" attrs="" name="username"/>
    <field name="password" attrs="" display="Password" widget="password" key="password" id="uuid-669A1F74-9FDA-11EA-9B74-1C8A1D44A1C8"/>
    <field widget="submit" value="" id="uuid-669A7262-9FDA-11EA-9B74-1C8A1D44A1C8" key="submit" display="Login" name="submit" attrs=""/>
  </form>
</response>