Merge branch 'master' of http://git.dayaedu.com/yonge/mec

mec-biz/src/main/java/com/ym/mec/biz/service/impl/PracticeGroupServiceImpl.java

@@ -3153,6 +3153,9 @@ public class PracticeGroupServiceImpl extends BaseServiceImpl<Long, PracticeGrou
             throw new BizException("请指定需要重新支付的课程组");
         }
         PracticeGroup practiceGroup = practiceGroupDao.get(practiceGroupId.longValue());
+        if(Objects.isNull(practiceGroup)){
+            throw new BizException("此课程组已过期，请重新购买");
+        }
         if(!practiceGroup.getGroupStatus().equals(GroupStatusEnum.LOCK)){
             throw new BizException("此课程组不处于支付中");
         }