diff --git a/app/controllers/admin/register_api_controller.rb b/app/controllers/admin/register_api_controller.rb
index 2071f65..818c2ec 100644
--- a/app/controllers/admin/register_api_controller.rb
+++ b/app/controllers/admin/register_api_controller.rb
@@ -28,14 +28,21 @@ class Admin::RegisterApiController < ApplicationController
 			response["message"] = "Site already registered."
 			response["error"] = "SITE_ALREADY_REGISTERED"
 		end
-		render :json => response.to_json
 		if !site.nil?
 			p1 = fork {register_client_site(site.site_token) }
 			Process.detach(p1)
 		end
+		render :json => ((params[:success] == 'error') ? response.merge({'success'=>params[:success]}).to_json : response.to_json)
 
 	end
-
+	def send_store_token
+		site = RegisteredSite.where(:site_domain => params[:site_domain]).first
+		if !site.nil?
+			render :json => {'store_token'=>site.uid}
+		else
+			render :json => {'store_token'=>nil}
+		end
+	end
 	def send_confirmation_email(email, confirmation_token, site_token)
 		url = "#{request.protocol}#{request.host_with_port}/register/confirm_email?confirmation=#{confirmation_token}&site=#{site_token}"
       	email = Email.new(:mail_to => email, :mail_subject => "Confirmation email for orbit store.", :template => "email/site_confirmation_email.html.erb", :template_data => {"url" => url})
@@ -47,10 +54,8 @@ class Admin::RegisterApiController < ApplicationController
 		site = RegisteredSite.find_by(:uid => site_token) rescue nil
 		if !site.nil?
 			send_confirmation_email(site.admin_email, site.confirmation_token, site.site_token)
-			render  :json => {"success" => true}.to_json
-		else
-			render  :json => {"success" => false}.to_json
 		end
+		redirect_to :back
 	end
 
 	def re_register_url
@@ -82,7 +87,7 @@ class Admin::RegisterApiController < ApplicationController
 		else
 			response["success"] = true
 		end
-		render :json => response.to_json
+		render :json => ((params[:success] == 'error') ? response.merge(params).to_json : response.to_json)
 	end
 
 	def register_client_site(store_token)
@@ -91,8 +96,17 @@ class Admin::RegisterApiController < ApplicationController
 		http = Net::HTTP.new(uri.host,uri.port)
 		request = Net::HTTP::Post.new("/store/confirmation")
 		request.body = params_to_send.to_query
-		response = http.request(request)
-		return response
+		begin
+			response = http.request(request)
+			if response.code == '200'
+				return response
+			else
+				response = Net::HTTP.post_form(URI("https://#{params[:site_domain]}/store/confirmation"),params_to_send) #if response.code == 301,use https to resend /store/confirmation
+				return response
+			end
+		rescue
+			params[:success] = 'error'
+		end
 	end
 
 	def confirm_email
diff --git a/app/views/admin/registered_sites/_index.html.erb b/app/views/admin/registered_sites/_index.html.erb
index 719536b..6fdb2f1 100644
--- a/app/views/admin/registered_sites/_index.html.erb
+++ b/app/views/admin/registered_sites/_index.html.erb
@@ -43,7 +43,7 @@
         </td>
   			<td>
   				<% if !site.site_confirmed %>
-  					<a class="btn btn-success" disabled="disabled"> Grant </a>
+  					<a class="btn btn-success" href="<%='/site/send_email?store_token='+site.uid%>"> <%=t('resend_email')%></a>
   				<% elsif !site.access_granted %>
   					<a href="/admin/registered_site/change_access/<%= site.site_token %>?status=grant<%= "&page=#{params[:page]}" if params[:page]%><%= "&keywords=#{params[:keywords]}" if params[:keywords] %>" class="btn btn-success" data-remote="true">Grant</a>
   				<% else %>
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 6300bb4..a486c93 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -3,6 +3,7 @@ en:
   admin_email: Admin Email
   status: Status
   permission: Access
+  resend_email: Resend email
   registered_sites:
       customization_log: Customization Log
       registered_sites: Registered Sites
diff --git a/config/locales/zh_tw.yml b/config/locales/zh_tw.yml
index c0d307f..358c1cc 100644
--- a/config/locales/zh_tw.yml
+++ b/config/locales/zh_tw.yml
@@ -3,6 +3,7 @@ zh_tw:
   admin_email: Admin Email
   status: Status
   permission: Access
+  resend_email: Resend email
   registered_sites:
     customization_log: Customization Log
     registered_sites: Registered Sites
diff --git a/registered_sites.gemspec b/registered_sites.gemspec
index fbf9e13..51a7790 100644
--- a/registered_sites.gemspec
+++ b/registered_sites.gemspec
@@ -1,19 +1,22 @@
-$:.push File.expand_path("../lib", __FILE__)
+# -*- encoding: utf-8 -*-
+# stub: registered_sites 0.0.1 ruby lib
 
-# Maintain your gem's version:
-require "registered_sites/version"
-
-# Describe your gem and declare its dependencies:
 Gem::Specification.new do |s|
-  s.name        = "registered_sites"
-  s.version     = RegisteredSites::VERSION
-  s.authors     = ["Rulingcom"]
-  s.email       = ["harry@rulingcom.com"]
-  s.homepage    = "http://www.rulingcom.com"
-  s.summary     = "Manage registered sites."
-  s.description = "Manage registered sites."
-  s.license     = "MIT"
+  s.name = "registered_sites"
+  s.version = "0.0.1"
 
-  s.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.rdoc"]
-  s.test_files = Dir["test/**/*"]
+  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
+  s.require_paths = ["lib"]
+  s.authors = ["Rulingcom"]
+  s.date = "2019-03-28"
+  s.description = "Manage registered sites."
+  s.email = ["harry@rulingcom.com"]
+  s.files = ["MIT-LICENSE", "README.rdoc", "Rakefile", "app/assets/images/registered_sites", "app/assets/javascripts/registered_site_progress.js", "app/assets/javascripts/registered_sites", "app/assets/javascripts/registered_sites/application.js", "app/assets/stylesheets/registered_site_progress.css.scss", "app/assets/stylesheets/registered_sites", "app/assets/stylesheets/registered_sites/application.css", "app/controllers/admin/customization_logs_controller.rb", "app/controllers/admin/register_api_controller.rb", "app/controllers/admin/registered_sites_controller.rb", "app/controllers/registered_sites_controller.rb", "app/helpers/registered_sites", "app/helpers/registered_sites/application_helper.rb", "app/models/registered_site.rb", "app/models/site_log.rb", "app/models/site_log_file.rb", "app/views/admin/customization_logs", "app/views/admin/customization_logs/_form.html.erb", "app/views/admin/customization_logs/_form_file.html.erb", "app/views/admin/customization_logs/_index.html.erb", "app/views/admin/customization_logs/_log_modal.html.erb", "app/views/admin/customization_logs/edit.html.erb", "app/views/admin/customization_logs/get_log.html.erb", "app/views/admin/customization_logs/index.html.erb", "app/views/admin/customization_logs/new.html.erb", "app/views/admin/register_api", "app/views/admin/register_api/confirm_email.html.erb", "app/views/admin/registered_sites", "app/views/admin/registered_sites/_form.html.erb", "app/views/admin/registered_sites/_index.html.erb", "app/views/admin/registered_sites/change_access_status.js.erb", "app/views/admin/registered_sites/destroy.js.erb", "app/views/admin/registered_sites/edit.html.erb", "app/views/admin/registered_sites/index.html.erb", "app/views/admin/registered_sites/progress.html.erb", "app/views/email/site_confirmation_email.html.erb", "config/locales/en.yml", "config/locales/zh_tw.yml", "config/routes.rb", "lib/registered_sites", "lib/registered_sites.rb", "lib/registered_sites/engine.rb", "lib/registered_sites/version.rb", "lib/tasks/registered_sites_tasks.rake", "test/dummy", "test/dummy/README.rdoc", "test/dummy/Rakefile", "test/dummy/app", "test/dummy/app/assets", "test/dummy/app/assets/images", "test/dummy/app/assets/javascripts", "test/dummy/app/assets/javascripts/application.js", "test/dummy/app/assets/stylesheets", "test/dummy/app/assets/stylesheets/application.css", "test/dummy/app/controllers", "test/dummy/app/controllers/application_controller.rb", "test/dummy/app/controllers/concerns", "test/dummy/app/helpers", "test/dummy/app/helpers/application_helper.rb", "test/dummy/app/mailers", "test/dummy/app/models", "test/dummy/app/models/concerns", "test/dummy/app/views", "test/dummy/app/views/layouts", "test/dummy/app/views/layouts/application.html.erb", "test/dummy/bin", "test/dummy/bin/bundle", "test/dummy/bin/rails", "test/dummy/bin/rake", "test/dummy/config", "test/dummy/config.ru", "test/dummy/config/application.rb", "test/dummy/config/boot.rb", "test/dummy/config/database.yml", "test/dummy/config/environment.rb", "test/dummy/config/environments", "test/dummy/config/environments/development.rb", "test/dummy/config/environments/production.rb", "test/dummy/config/environments/test.rb", "test/dummy/config/initializers", "test/dummy/config/initializers/assets.rb", "test/dummy/config/initializers/backtrace_silencers.rb", "test/dummy/config/initializers/cookies_serializer.rb", "test/dummy/config/initializers/filter_parameter_logging.rb", "test/dummy/config/initializers/inflections.rb", "test/dummy/config/initializers/mime_types.rb", "test/dummy/config/initializers/session_store.rb", "test/dummy/config/initializers/wrap_parameters.rb", "test/dummy/config/locales", "test/dummy/config/locales/en.yml", "test/dummy/config/routes.rb", "test/dummy/config/secrets.yml", "test/dummy/lib", "test/dummy/lib/assets", "test/dummy/log", "test/dummy/public", "test/dummy/public/404.html", "test/dummy/public/422.html", "test/dummy/public/500.html", "test/dummy/public/favicon.ico", "test/integration/navigation_test.rb", "test/registered_sites_test.rb", "test/test_helper.rb"]
+  s.homepage = "http://www.rulingcom.com"
+  s.licenses = ["MIT"]
+  s.rubygems_version = "2.2.2"
+  s.summary = "Manage registered sites."
+  s.test_files = ["test/dummy", "test/dummy/README.rdoc", "test/dummy/bin", "test/dummy/bin/bundle", "test/dummy/bin/rake", "test/dummy/bin/rails", "test/dummy/log", "test/dummy/app", "test/dummy/app/assets", "test/dummy/app/assets/javascripts", "test/dummy/app/assets/javascripts/application.js", "test/dummy/app/assets/images", "test/dummy/app/assets/stylesheets", "test/dummy/app/assets/stylesheets/application.css", "test/dummy/app/mailers", "test/dummy/app/helpers", "test/dummy/app/helpers/application_helper.rb", "test/dummy/app/controllers", "test/dummy/app/controllers/application_controller.rb", "test/dummy/app/controllers/concerns", "test/dummy/app/views", "test/dummy/app/views/layouts", "test/dummy/app/views/layouts/application.html.erb", "test/dummy/app/models", "test/dummy/app/models/concerns", "test/dummy/Rakefile", "test/dummy/lib", "test/dummy/lib/assets", "test/dummy/public", "test/dummy/public/422.html", "test/dummy/public/500.html", "test/dummy/public/favicon.ico", "test/dummy/public/404.html", "test/dummy/config.ru", "test/dummy/config", "test/dummy/config/environments", "test/dummy/config/environments/production.rb", "test/dummy/config/environments/development.rb", "test/dummy/config/environments/test.rb", "test/dummy/config/environment.rb", "test/dummy/config/database.yml", "test/dummy/config/boot.rb", "test/dummy/config/routes.rb", "test/dummy/config/application.rb", "test/dummy/config/secrets.yml", "test/dummy/config/locales", "test/dummy/config/locales/en.yml", "test/dummy/config/initializers", "test/dummy/config/initializers/wrap_parameters.rb", "test/dummy/config/initializers/cookies_serializer.rb", "test/dummy/config/initializers/mime_types.rb", "test/dummy/config/initializers/assets.rb", "test/dummy/config/initializers/inflections.rb", "test/dummy/config/initializers/backtrace_silencers.rb", "test/dummy/config/initializers/filter_parameter_logging.rb", "test/dummy/config/initializers/session_store.rb", "test/test_helper.rb", "test/registered_sites_test.rb", "test/integration/navigation_test.rb"]
+
+  s.installed_by_version = "2.2.2" if s.respond_to? :installed_by_version
 end