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" uuid="A403455C-1844-11EA-94C3-E08947F95FFE" encoding="&#x2713;" uri="" key="login">
    <field value="" id="uuid-A4036FC8-1844-11EA-94C3-E08947F95FFE" key="username" name="username" display="Username" widget="text" attrs=""/>
    <field name="password" key="password" display="Password" id="uuid-A403A222-1844-11EA-94C3-E08947F95FFE" attrs="" widget="password"/>
    <field name="submit" key="submit" display="Login" id="uuid-A403D81E-1844-11EA-94C3-E08947F95FFE" value="" attrs="" widget="submit"/>
  </form>
</response>