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 key="login" uri="" encoding="&#x2713;" method="post" uuid="2B50001C-199A-11EA-B65F-52C647F95FFE">
    <field value="" id="uuid-2B502F42-199A-11EA-B65F-52C647F95FFE" key="username" display="Username" name="username" widget="text" attrs=""/>
    <field display="Password" key="password" name="password" id="uuid-2B505B16-199A-11EA-B65F-52C647F95FFE" widget="password" attrs=""/>
    <field widget="submit" attrs="" value="" id="uuid-2B508C8A-199A-11EA-B65F-52C647F95FFE" display="Login" name="submit" key="submit"/>
  </form>
</response>