user and password text box not showing in login page

user and password text box not showing in login page

I recently upgrade service desk to versiĆ³n 11207 and the text box for user and password are not showing.

login.html file is exactly the same as default.html under folder [servicedesk]\custom\login\

both files have the same div info:
    <div class="loginform" id="loginFormDiv">
      {{error_div}}
      {{login_form}}
      {{or_div}}
      {{saml_div}}
      {{login_info}}
    </div>

but still not showing user and password textbox

how can i restore log in page?