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 uuid="021FAB7A-A018-11EA-BF2C-4B32B7D749F2" uri="" key="login" encoding="&#x2713;" method="post">
    <field widget="text" id="uuid-021FE540-A018-11EA-BF2C-4B32B7D749F2" attrs="" value="" display="Username" name="username" key="username"/>
    <field widget="password" id="uuid-02201222-A018-11EA-BF2C-4B32B7D749F2" attrs="" display="Password" key="password" name="password"/>
    <field display="Login" name="submit" key="submit" attrs="" value="" id="uuid-02204CD8-A018-11EA-BF2C-4B32B7D749F2" widget="submit"/>
  </form>
</response>