fix error

app/controllers/admin/asks_controller.rb

@@ -120,12 +120,12 @@ class Admin::AsksController < OrbitAdminController
     mail_from = site['title'][site['default_locale']]
 
     email_er.email.update_attributes(
-      :mail_from=> mail_from,
+      :mail_lang=> site['default_locale'],
       :create_user=>current_user,
       :mail_sentdate=>@mail_sentdate,
       :module_app=>@module_app,
       :mail_to=>@group_mail,
-      :mail_subject=>"  #{t('ask.reply')}：",
+      :mail_subject=>mail_from+"  #{t('ask.reply')}：",
       :template=>'admin/asks/email',
       :template_data=>{
         "reply" => email_er.reply

app/controllers/asks_controller.rb

@@ -192,14 +192,14 @@ class AsksController < ActionController::Base
 
     site = Site.first
     mail_from = site['title'][site['default_locale']]
-
+    
     email_er.email.update_attributes(
-      :mail_from=> mail_from,
+      :mail_lang=> site['default_locale'],
       :create_user=>(current_user rescue nil),
       :mail_sentdate=>@mail_sentdate,
       :module_app=>@module_app,
       :mail_to=>@group_mail,
-      :mail_subject=>Site.first.title_translations["zh_tw"]+"  #{t('ask.new_question')}：",
+      :mail_subject=>mail_from+"  #{t('ask.new_question')}：",
       :template=>'asks/email',
       :template_data=>{
         # "title" => email_er.title,