fix c.alarmSubType['app_exception']

api/app/lib/schedule/alarms_push.js

@@ -486,7 +486,9 @@ module.exports = function (app, opts) {
                         if (c.alarmSubType) {
                            appAlarmWhereOption.type = { $in: c.alarmSubType['app_exception'] || [] }
                         }
-                        appAlarms = c.alarmSubType && c.alarmSubType['app_exception'].length ?
+                        appAlarms = c.alarmSubType &&
+                           c.alarmSubType['app_exception'] &&
+                           c.alarmSubType['app_exception'].length ?
                            await models.AppAlarm.findAll({
                               where: appAlarmWhereOption,
                               order: [['createTime', 'DESC']],