update json file

packages/app/public/static/locales/en_US/admin.json

@@ -377,7 +377,6 @@
     "local_label": "Local",
     "gridfs_label": "MongoDB(GridFS)",
     "file_upload": "This is for uploading file settings. If you complete file upload settings, file upload function, profile picture function etc will be enabled.",
-    "ses_settings":"SES settings",
     "test_connection": "Test connection to mail",
     "change_setting": "Caution:if you change this setting not completed, you will not be able to access files you have uploaded so far.",
     "region": "Region",

packages/app/public/static/locales/ja_JP/admin.json

@@ -385,7 +385,6 @@
     "gridfs_label": "MongoDB(GridFS)",
     "fixed_by_env_var": "環境変数 <code>FILE_UPLOAD={{fileUploadType}}</code> により固定されています。",
     "file_upload": "ファイルをアップロードするための設定を行います。ファイルアップロードの設定を完了させると、ファイルアップロード機能、プロフィール写真機能などが有効になります。",
-    "ses_settings": "SES設定",
     "test_connection": "接続テスト",
     "change_setting": "この設定を途中で変更すると、これまでにアップロードしたファイル等へのアクセスができなくなりますのでご注意下さい。",
     "region": "リージョン",

packages/app/public/static/locales/zh_CN/admin.json

@@ -385,7 +385,6 @@
     "gridfs_label": "MongoDB(GridFS)",
     "fixed_by_env_var": "这是由env var 修复的 <code>{{key}}={{value}}</code>.",
     "file_upload": "This is for uploading file settings. If you complete file upload settings, file upload function, profile picture function etc will be enabled.",
-    "ses_settings": "SES设置",
     "test_connection": "测试邮件服务器连接",
     "change_setting": "注意：如果你更改此设置未完成，您将无法访问迄今为止上传的文件。",
     "region": "Region",

packages/app/src/components/Admin/App/MailSetting.tsx

@@ -25,7 +25,7 @@ const MailSetting = (props: Props) => {
   async function submitHandler() {
     try {
       await adminAppContainer.updateMailSettingHandler();
-      toastSuccess(t('toaster.update_successed', { target: t('admin:app_setting.ses_settings'), ns: 'commons' }));
+      toastSuccess(t('toaster.update_successed', { target: t('admin:app_setting.mail_settings'), ns: 'commons' }));
     }
     catch (err) {
       toastError(err);

packages/app/src/server/routes/login.js

@@ -102,12 +102,12 @@ module.exports = function(crowi, app) {
 
   actions.register = function(req, res) {
     if (req.user != null) {
-      return res.apiv3Err('user_already_logged_in', 403);
+      return res.apiv3Err('message.user_already_logged_in', 403);
     }
 
     // config で closed ならさよなら
     if (configManager.getConfig('crowi', 'security:registrationMode') === aclService.labels.SECURITY_REGISTRATION_MODE_CLOSED) {
-      return res.apiv3Err('registration_closed', 403);
+      return res.apiv3Err('message.registration_closed', 403);
     }
 
     if (!req.form.isValid) {