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 key="login" uuid="52E27EFC-199A-11EA-A85F-8C182D83AE63" method="post" uri="" encoding="&#x2713;">
    <field widget="text" display="Username" id="uuid-52E2AFE4-199A-11EA-A85F-8C182D83AE63" name="username" value="" attrs="" key="username"/>
    <field id="uuid-52E2DF5A-199A-11EA-A85F-8C182D83AE63" display="Password" widget="password" name="password" attrs="" key="password"/>
    <field key="submit" attrs="" value="" name="submit" id="uuid-52E31312-199A-11EA-A85F-8C182D83AE63" display="Login" widget="submit"/>
  </form>
</response>