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="" method="post" encoding="&#x2713;" uuid="9E0D387E-200A-11EA-A3A8-4E38FC0ABCF6" key="login">
    <field attrs="" widget="text" display="Username" id="uuid-9E0D6434-200A-11EA-A3A8-4E38FC0ABCF6" value="" name="username" key="username"/>
    <field id="uuid-9E0D8FCC-200A-11EA-A3A8-4E38FC0ABCF6" key="password" name="password" attrs="" display="Password" widget="password"/>
    <field attrs="" widget="submit" display="Login" value="" id="uuid-9E0DC028-200A-11EA-A3A8-4E38FC0ABCF6" name="submit" key="submit"/>
  </form>
</response>