Merge branch 'active_course_2021-09-26～29' of http://git.dayaedu.com/yonge/mec into 2021-double-eleven

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

@@ -273,7 +273,7 @@ public class GroupClassServiceImpl implements GroupClassService {
                         return BaseController.failed(HttpStatus.PARTIAL_CONTENT,format);
                     }
                     if(activityUserMapper.getPracticeFlag() == 2){
-                        PracticeGroup practiceGroup = practiceGroupDao.get(activityUserMapper.getGivePracticeGroupId());
+                        PracticeGroup practiceGroup = practiceGroupDao.get(activityUserMapper.getPracticeGroupId());
                         String format = String.format("该课程组通过 %s 赠送创建，含付费课课程组%s %s，确认退学(关闭)后付费课课程组也将退学", activity.getName(),practiceGroup.getId(),practiceGroup.getName());
                         return BaseController.failed(HttpStatus.PARTIAL_CONTENT,format);
                     }