Index: apps/pc_frontend/modules/communityTopic/templates/_configNotificationMail.php
===================================================================
--- apps/pc_frontend/modules/communityTopic/templates/_configNotificationMail.php	(リビジョン 13620)
+++ apps/pc_frontend/modules/communityTopic/templates/_configNotificationMail.php	(作業コピー)
@@ -1,4 +1,4 @@
-<?php if (version_compare(OPENPNE_VERSION, '3.6beta1-dev', '>=')): ?>
+<?php if (version_compare(OPENPNE_VERSION, '3.6beta1-dev', '>=') && $form): ?>
 <?php op_include_form('configNotificationMailBox', $form, array(
   'mark_required_field' => false,
   'url'                 => url_for('@config_community_topic_notification_mail?id='.$sf_request->getParameter('id')),
Index: apps/mobile_frontend/modules/communityTopic/templates/_configNotificationMail.php
===================================================================
--- apps/mobile_frontend/modules/communityTopic/templates/_configNotificationMail.php	(リビジョン 13620)
+++ apps/mobile_frontend/modules/communityTopic/templates/_configNotificationMail.php	(作業コピー)
@@ -1,3 +1,4 @@
+<?php if (version_compare(OPENPNE_VERSION, '3.6beta1-dev', '>=') && $form): ?>
 <?php op_include_form('configNotificationMailBox', $form, array(
   'title' => __('Notification Mail Configuration'),
   'mark_required_field' => false,
@@ -4,3 +5,4 @@
   'url'                 => url_for('@config_community_topic_notification_mail?id='.$sf_request->getParameter('id')),
   'button'              => __('Save'),
 )); ?>
+<?php endif; ?>
Index: lib/action/opCommunityTopicPluginTopicComponents.class.php
===================================================================
--- lib/action/opCommunityTopicPluginTopicComponents.class.php	(リビジョン 13620)
+++ lib/action/opCommunityTopicPluginTopicComponents.class.php	(作業コピー)
@@ -48,6 +48,13 @@
 
   public function executeConfigNotificationMail($request)
   {
-    $this->form = new opConfigCommunityTopicNotificationMailForm($request['id']);
+    try
+    {
+      $this->form = new opConfigCommunityTopicNotificationMailForm($request['id']);
+    }
+    catch (RuntimeException $e)
+    {
+      // do nothing.
+    }
   }
 }