Wordpress metabox of template list in admin site is not display -

below screen shot. metabox of template not working. had used "kallyas" theme. can me?

<?php /*  * template name : stack widget  */     get_header(); ?>  <?php // globals  global $content_and_sidebar;  $meta_fields = get_post_meta($post->id, 'zn_meta_elements', true); $meta_fields = maybe_unserialize( $meta_fields );   if ( post_password_required() ) {      $meta_fields['content_main_area'] = '';     $meta_fields['content_bottom_area'] = '';     $meta_fields['content_grey_area'] = ''; }    /*-------------------------------------------------------------------------------------------------- action box area --------------------------------------------------------------------------------------------------*/   if ( isset ( $meta_fields['action_box_area'] ) && is_array ( $meta_fields['action_box_area'] ) ) {      zn_get_template_from_area ('action_box_area',$post->id,$meta_fields); }    /*-------------------------------------------------------------------------------------------------- content area --------------------------------------------------------------------------------------------------*/    // here check if sidebar enabled  $content_css = 'span12'; $has_sidebar = false; $mainbody_css = '';   // check if not page our theme      if ( empty ( $meta_fields['page_layout'] ) || empty ( $meta_fields['sidebar_select'] ) ) {      if ( $data['page_sidebar_position'] == 'left_sidebar' ) {          $content_css = 'span9 zn_float_right zn_content';          $has_sidebar = true;          $mainbody_css = 'zn_has_sidebar';      }      elseif ( $data['page_sidebar_position'] == 'right_sidebar' ) {          $content_css = 'span9 zn_content';          $has_sidebar = true;          $mainbody_css = 'zn_has_sidebar';      }  }     // check if have left sidebar  elseif ( $meta_fields['page_layout'] == 'left_sidebar' || ( $meta_fields['page_layout'] == 'default' && !empty ( $data['page_sidebar_position'] ) && $data['page_sidebar_position'] == 'left_sidebar' )   )  {      $content_css = 'span9 zn_float_right zn_content';      $has_sidebar = true;      $mainbody_css = 'zn_has_sidebar';  }  // check if have right sidebar  elseif ( $meta_fields['page_layout'] == 'right_sidebar' || ( $meta_fields['page_layout'] == 'default' && !empty ( $data['page_sidebar_position'] ) && $data['page_sidebar_position'] == 'right_sidebar' )  )  {      $content_css = 'span9 zn_content';      $has_sidebar = true;      $mainbody_css = 'zn_has_sidebar';  }    echo '<section id="content">';    if ( $content_and_sidebar ) {         while (have_posts()) : the_post();        ob_start();      the_content();      $content = ob_get_clean();    //  $content = get_the_content();      //$content_check = apply_filters('the_content', get_the_content());      if ( !empty($content) || ( isset ( $meta_fields['page_title_show'] ) && $meta_fields['page_title_show'] == 'yes' ) || ( isset ( $meta_fields['content_main_area'] ) && is_array ( $meta_fields['content_main_area'] ) && ( isset( $meta_fields['page_builder_layout'] ) && $meta_fields['page_builder_layout'] == 'style1' ) ) ) {            $row_margin = 'zn_content_no_margin';          $row_style = 'row';            if ( $content || $has_sidebar ) {              $row_margin = '';          }            if ( isset( $meta_fields['page_builder_layout'] ) && $meta_fields['page_builder_layout'] == 'style1' ) {              $row_style = 'row-fluid zn_def_margin zn_has_sidebar';          }            echo '<div class="container">';            echo '<div class="mainbody '.$mainbody_css.'">';                    echo '<div class="'.$row_style.' '.$row_margin.'">';                        echo '<div class="'.$content_css.'">';                            // title check                          if ( isset ( $meta_fields['page_title_show'] ) && $meta_fields['page_title_show'] == 'yes' ) {                              echo '<h1 class="page-title">'.get_the_title().'</h1>';                          }                            // page content                          echo $content;                            if ( !empty($data['zn_enable_page_comments']) && $data['zn_enable_page_comments'] == 'yes'  ) {                              if ( isset( $data['zn_set_location_page_comments'] ) && (int)$data['zn_set_location_page_comments'] == 0 ) {                                  ?>                                  <!-- disqus comments block -->                                  <div class="disqusform">                                      <?php comments_template(); ?>                                  </div>                                  <div class="clear"></div>                                  <!-- end disqus comments block -->                              <?php                              }                          }    /*-------------------------------------------------------------------------------------------------- start content area  --------------------------------------------------------------------------------------------------*/  if ( isset ( $meta_fields['content_main_area'] ) && is_array ( $meta_fields['content_main_area'] ) && ( isset( $meta_fields['page_builder_layout'] ) && $meta_fields['page_builder_layout'] == 'style1' ) ) {                          zn_get_template_from_area ('content_main_area',$post->id,$meta_fields,true);                      }                          echo '</div>';                          // start sidebar options                      // check if not page theme                      if ( empty ( $meta_fields['page_layout'] ) || empty ( $meta_fields['sidebar_select'] ) ) {                          if ( $data['page_sidebar_position'] == 'left_sidebar' || $data['page_sidebar_position'] == 'right_sidebar' ) {                              echo '<div class="span3">';                                  echo '<div id="sidebar" class="sidebar">';                                      if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar($data['page_sidebar']) ) : endif;                                  echo '</div>';                              echo '</div>';                          }                      }                      // check if have sidebar set in page options                      elseif ( ( ( $meta_fields['page_layout'] == 'left_sidebar' || $meta_fields['page_layout'] == 'right_sidebar' ) && $meta_fields['sidebar_select'] != 'default' ) || (  $meta_fields['page_layout'] == 'default' && $data['page_sidebar_position'] != 'no_sidebar' && $meta_fields['sidebar_select'] != 'default' ) )                       {                                     echo '<div class="span3">';                                      echo '<div id="sidebar" class="sidebar">';                                          if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar( $meta_fields['sidebar_select'] ) ) : endif;                                      echo '</div>';                                  echo '</div>';                      }                      // check if have sidebar set theme's options                      elseif ( $meta_fields['page_layout'] == 'default' && $data['page_sidebar_position'] != 'no_sidebar' && $meta_fields['sidebar_select'] == 'default' || ( ( $meta_fields['page_layout'] == 'left_sidebar' || $meta_fields['page_layout'] == 'right_sidebar' ) && $meta_fields['sidebar_select'] == 'default' ) ) {                          echo '<div class="span3">';                              echo '<div id="sidebar" class="sidebar">';                                  if ( !function_exists('dynamic_sidebar') || !dynamic_sidebar($data['page_sidebar']) ) : endif;                              echo '</div>';                          echo '</div>';                      }                      echo '</div>';                echo '</div>';            echo '</div>';          }      endwhile;  }    /*-------------------------------------------------------------------------------------------------- start content area  --------------------------------------------------------------------------------------------------*/  if ( isset ( $meta_fields['content_main_area'] ) && is_array ( $meta_fields['content_main_area'] ) && ( !isset( $meta_fields['page_builder_layout'] ) || $meta_fields['page_builder_layout'] == 'default' ) ) {      echo '<div class="container">';          zn_get_template_from_area ('content_main_area',$post->id,$meta_fields);      echo '</div>';  }    /*-------------------------------------------------------------------------------------------------- start gray area --------------------------------------------------------------------------------------------------*/    $cls = '';  if ( !isset ( $meta_fields['content_bottom_area'] ) || !is_array ( $meta_fields['content_bottom_area'] ) ) {      $cls = 'nomargin';  }    if ( isset ( $meta_fields['content_grey_area'] ) && is_array ( $meta_fields['content_grey_area'] ) ) {  echo '<div class="gray-area '.$cls.'">';      echo '<div class="container">';            zn_get_template_from_area ('content_grey_area',$post->id,$meta_fields);        echo '</div>';  echo '</div>';  }          /*-------------------------------------------------------------------------------------------------- start bottom area --------------------------------------------------------------------------------------------------*/      if ( isset ( $meta_fields['content_bottom_area'] ) && is_array ( $meta_fields['content_bottom_area'] ) ) {      echo '<div class="container">';          zn_get_template_from_area ('content_bottom_area',$post->id,$meta_fields);      echo '</div>';  }   echo '</section><!-- end #content -->';   ?>    <div class="container">  <?php      if ( !empty($data['zn_enable_page_comments']) && $data['zn_enable_page_comments'] == 'yes'  ) {          if ( isset( $data['zn_set_location_page_comments'] ) && (int)$data['zn_set_location_page_comments'] == 1 ) {              ?>              <!-- disqus comments block -->              <div class="disqusform">          <?php comments_template(); ?>          </div>          <div class="clear"></div>          <!-- end disqus comments block -->      <?php          }      }  ?>  </div>      <?php get_footer(); ?> 

it display in admin page

<?php /* * template name: stack widget */ get_header(); ?>