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 uri="" key="login" uuid="A953B052-183D-11EA-8B16-9C8647F95FFE" method="post" encoding="&#x2713;">
    <field value="" id="uuid-A953E540-183D-11EA-8B16-9C8647F95FFE" display="Username" name="username" key="username" widget="text" attrs=""/>
    <field name="password" key="password" display="Password" id="uuid-A9540DF4-183D-11EA-8B16-9C8647F95FFE" widget="password" attrs=""/>
    <field name="submit" display="Login" key="submit" id="uuid-A9543C20-183D-11EA-8B16-9C8647F95FFE" value="" widget="submit" attrs=""/>
  </form>
</response>