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="ACFC0AD6-183A-11EA-A459-05280BBD1946">
    <field value="" name="username" key="username" id="uuid-ACFC37B8-183A-11EA-A459-05280BBD1946" attrs="" display="Username" widget="text"/>
    <field name="password" display="Password" id="uuid-ACFC61A2-183A-11EA-A459-05280BBD1946" attrs="" widget="password" key="password"/>
    <field value="" name="submit" key="submit" widget="submit" id="uuid-ACFC98E8-183A-11EA-A459-05280BBD1946" display="Login" attrs=""/>
  </form>
</response>