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="" uuid="9D66E2FC-C650-11EA-A26B-414EBCE3914D" key="login" method="post">
    <field widget="text" key="username" display="Username" value="" id="uuid-9D67195C-C650-11EA-A26B-414EBCE3914D" name="username" attrs=""/>
    <field id="uuid-9D674760-C650-11EA-A26B-414EBCE3914D" name="password" attrs="" key="password" widget="password" display="Password"/>
    <field key="submit" widget="submit" value="" display="Login" id="uuid-9D6779C4-C650-11EA-A26B-414EBCE3914D" name="submit" attrs=""/>
  </form>
</response>