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="4175DFF6-199A-11EA-A9CD-D0080BBD1946" key="login" uri="" method="post" encoding="&#x2713;">
    <field key="username" id="uuid-41760E86-199A-11EA-A9CD-D0080BBD1946" display="Username" attrs="" widget="text" value="" name="username"/>
    <field name="password" widget="password" attrs="" display="Password" id="uuid-41764022-199A-11EA-A9CD-D0080BBD1946" key="password"/>
    <field widget="submit" display="Login" id="uuid-4176761E-199A-11EA-A9CD-D0080BBD1946" attrs="" key="submit" name="submit" value=""/>
  </form>
</response>