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 encoding="&#x2713;" uri="" method="post" key="login" uuid="C9984A5C-574A-11EA-B3F3-32004A0E2E26">
    <field widget="text" name="username" key="username" attrs="" id="uuid-C9987590-574A-11EA-B3F3-32004A0E2E26" display="Username" value=""/>
    <field key="password" id="uuid-C998A722-574A-11EA-B3F3-32004A0E2E26" attrs="" widget="password" name="password" display="Password"/>
    <field attrs="" id="uuid-C998D878-574A-11EA-B3F3-32004A0E2E26" key="submit" widget="submit" name="submit" value="" display="Login"/>
  </form>
</response>