diff --git a/app/controllers/application_forms_controller.rb b/app/controllers/application_forms_controller.rb
index e3cddf6..7c67ec9 100644
--- a/app/controllers/application_forms_controller.rb
+++ b/app/controllers/application_forms_controller.rb
@@ -395,8 +395,9 @@ class ApplicationFormsController < ApplicationController
   def agree_link
     signup = ApplicationFormSignup.find(params[:id]) rescue nil
     stage_num = signup ? signup.get_stage_num(params[:cipher]) : nil
+    @error_message = nil
     if stage_num.nil?
-      render_404
+      @error_message = I18n.t('application_form.this_link_has_expired')
     else
       @type = params[:type]
       application_form = signup.application_form_main
@@ -444,7 +445,7 @@ class ApplicationFormsController < ApplicationController
     form_params = params[:application_form_signup]
     form_params_email = form_params[:email]
     form_params_main_id = form_params[:application_form_main_id]
-    @signup = ApplicationFormSignup.where(email: form_params_email, application_form_main_id: form_params_main_id ).first
+    @signup = nil #ApplicationFormSignup.where(email: form_params_email, application_form_main_id: form_params_main_id ).first
 
     @application_form = ApplicationFormMain.where(id: form_params_main_id).first
     @application_form_signup = ApplicationFormSignup.new(application_form_signup_params)
@@ -453,10 +454,6 @@ class ApplicationFormsController < ApplicationController
     else
       flag = false
     end
-    if @signup.present?
-      @signup.destroy
-      @signup = nil
-    end
     begin
     if gotcha_valid? || flag
       if @signup.blank? && @application_form_signup.save
diff --git a/app/views/application_forms/agree_link.html.erb b/app/views/application_forms/agree_link.html.erb
index 3050952..f367cca 100644
--- a/app/views/application_forms/agree_link.html.erb
+++ b/app/views/application_forms/agree_link.html.erb
@@ -3,7 +3,7 @@
 		background: #00ff7f;
     	color: #000000;
 	}
-	.disagree_text{
+	.disagree_text, .error_text{
 		background: #ff004a;
     	color: #ffffff;
 	}
@@ -16,11 +16,17 @@
     	position: absolute;
 	}
 </style>
-<h3 style="text-align: center;"><span class="<%=@type%>_text"><% if @type == 'agree' %>
+<% @type = 'error' if @error_message %>
+<h3 style="text-align: center;">
+<span class="<%=@type%>_text">
+<% if @error_message %>
+<%= @error_message.html_safe %>
+<%elsif @type == 'agree' %>
 <%=t('application_form.send_email_to_next_stage_reviewer')%>
 <% elsif @type == 'disagree' %>
 <%=t('application_form.email_add_file_success')%>
 <% elsif @type == 'finish' %>
 <%=t('application_form.email_edit_file_success')%>
-<% end %></span></h3>
+<% end %>
+</span></h3>
 <button class="close_btn" onclick="window.close()"><%=t('application_form.close')%></button>
\ No newline at end of file
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 3f37e62..bdb9310 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -27,6 +27,7 @@ en:
         abstract_number: Abstract number
         presentation_type: Presentation
   application_form:
+    this_link_has_expired: "This link has expired!"
     close: "Close"
     send_email_to_next_stage_reviewer: "Email has been sent to reviewer of next stage!"
     denied_stage: "Denied Stage"
diff --git a/config/locales/zh_tw.yml b/config/locales/zh_tw.yml
index 9a69392..e41c327 100644
--- a/config/locales/zh_tw.yml
+++ b/config/locales/zh_tw.yml
@@ -28,6 +28,7 @@ zh_tw:
         abstract_number: 摘要編號
         presentation_type: 發表方式
   application_form:
+    this_link_has_expired: "此連結已失效!"
     close: "關閉"
     send_email_to_next_stage_reviewer: "已寄送email給下個階段審核者!"
     denied_stage: "未通過階段"