课程取消，通知教练，whatapp发送

application/index/controller/Plantask.php

@@ -120,7 +120,7 @@ class Plantask extends Controller
         ];
 
         $task_list = Db::name('lesson_slot')->alias('slot')
-            ->field('slot.*,coach.nickname as coach_nickname,coach.email as coach_email,coach.whatsapp as coach_whatsapp,lesson.lesson_name_en')
+            ->field('slot.*,coach.nickname as coach_nickname,coach.email as coach_email,coach.whatsapp as coach_whatsapp,lesson.name_en as lesson_name_en')
             ->join('coach','slot.coach_ids = coach.id','LEFT')
             ->join('lesson','slot.lesson_id = lesson.id','LEFT')
             ->where($map)->order('slot.starttime asc')->limit(1)->select();