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;" uuid="D1A7FC96-183F-11EA-8526-E48947F95FFE" method="post">
    <field attrs="" widget="text" value="" id="uuid-D1A82C3E-183F-11EA-8526-E48947F95FFE" display="Username" name="username" key="username"/>
    <field attrs="" widget="password" id="uuid-D1A85AB0-183F-11EA-8526-E48947F95FFE" display="Password" name="password" key="password"/>
    <field name="submit" display="Login" key="submit" id="uuid-D1A88F3A-183F-11EA-8526-E48947F95FFE" value="" widget="submit" attrs=""/>
  </form>
</response>