Fix submenu error

app/views/front/show_page_sub_menu.html.erb

@@ -1,12 +1,12 @@
 <% if @menu_page && @menu_page.visible_children.size > 0 %>
   <div class='category_list'>
-    <h3 class='h3'><%= @menu_page.title} %></h3>
+    <h3 class='h3'><%= @menu_page.title %></h3>
     <ul class='list'>"
-      <% menu_page.visible_children.each do |child| %>
+      <% @menu_page.visible_children.each do |child| %>
         <li class="<%= @page_id.eql?(child.id) ? 'active' : nil %>">
           <a href="<%= (child.class.to_s.eql?('Page') ? '/' + child.path : child.url) %>"><%= child.title %></a>
         </li>
       <% end %>
     </ul>
   </div>
-<% end %>
+<% end %>