Fix bug

app/controllers/registrations_controller.rb

@@ -24,10 +24,6 @@ class RegistrationsController < Devise::RegistrationsController
     end
   end
 
-  def show
-    render :show
-  end
-
   def download_file
     send_file("#{Rails.root}/app/upload/#{current_user.cv_name}", filename: current_user.cv_name)
   end

app/views/devise/registrations/show.html.erb

@@ -4,15 +4,15 @@
 
   <div class="form-group">
     <label>Email</label><br />
-    <input type="text" value="<%= current_user.email %>", class="form-control", readonly/>
+    <input type="text" value="<%= current_user.email unless current_user.nil? %>", class="form-control", readonly/>
   </div>
   <div class="form-group">
     <label>Full name</label><br />
-    <input type="text" value="<%= current_user.fullname %>", class="form-control", readonly/>
+    <input type="text" value="<%= current_user.fullname unless current_user.nil? %>", class="form-control", readonly/>
   </div>
   <div class="form-group">
     <label>Cv name</label><br />
-    <%= link_to current_user.cv_name, registrations_download_file_path %>
+    <%= link_to current_user.nil? ? '' : current_user.cv_name, registrations_download_file_path %>
   </div>
 
   <div class="form-group">