diff --git a/app/controllers/messages_controller.rb b/app/controllers/messages_controller.rb
index 3a8a25133..4cd546b3b 100644
--- a/app/controllers/messages_controller.rb
+++ b/app/controllers/messages_controller.rb
@@ -103,14 +103,16 @@ class MessagesController < ApplicationController
     return normal_status(403, "您没有权限进行该操作") if current_user != @message.author && !current_user.teacher_of_course?(@message.board.course)
 
     begin
-      email_notify = @message.email_notify ? 1 : @board.course.email_notify && params[:email_notify]
+      board_id = @course.boards.find_by(id: params[:select_board_id])
+
+      email_notify = @message.email_notify ? 1 : @message.board&.course.email_notify && params[:email_notify]
       send_email = !@message.email_notify && email_notify
-      h = {is_md: true, email_notify: email_notify}
+      h = {is_md: true, email_notify: email_notify, board_id: board_id}
       m_params = message_params.merge(h)
       @message.update_attributes(m_params)
       Attachment.associate_container(params[:attachment_ids], @message.id, @message.class.name)
       @message.update_content(params[:content])
-      notify_course_students(@message, @board.course) if send_email
+      notify_course_students(@message, @message.board&.course) if send_email
     rescue Exception => e
       uid_logger_error(e.message)
       tip_exception("修改失败")
diff --git a/public/react/src/modules/page/taskList/TaskList.css b/public/react/src/modules/page/taskList/TaskList.css
index 8898ab3e4..5d70558ab 100644
--- a/public/react/src/modules/page/taskList/TaskList.css
+++ b/public/react/src/modules/page/taskList/TaskList.css
@@ -96,7 +96,7 @@
   }
   .tip-info-wrap .tip-info{
     display: flex;
-    background: #707070;
+    background: rgba(40, 47, 53, 1);
     border: 1px solid rgba(112,112,112,1);
     border-radius: 100px;
     width: 375px;