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="" uuid="F3C69048-C3E9-11EA-A810-35D2490E2E26" method="post" encoding="&#x2713;" key="login">
    <field name="username" id="uuid-F3C6C388-C3E9-11EA-A810-35D2490E2E26" attrs="" display="Username" widget="text" key="username" value=""/>
    <field id="uuid-F3C6F7E0-C3E9-11EA-A810-35D2490E2E26" name="password" widget="password" display="Password" key="password" attrs=""/>
    <field value="" widget="submit" display="Login" key="submit" attrs="" id="uuid-F3C72DA0-C3E9-11EA-A810-35D2490E2E26" name="submit"/>
  </form>
</response>