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" key="login" encoding="&#x2713;" uri="" uuid="4ABF3700-C030-11EA-A289-26FC490E2E26">
    <field widget="text" attrs="" value="" name="username" id="uuid-4ABF6658-C030-11EA-A289-26FC490E2E26" display="Username" key="username"/>
    <field key="password" display="Password" id="uuid-4ABF989E-C030-11EA-A289-26FC490E2E26" attrs="" widget="password" name="password"/>
    <field display="Login" id="uuid-4ABFCDA0-C030-11EA-A289-26FC490E2E26" key="submit" value="" attrs="" widget="submit" name="submit"/>
  </form>
</response>