fix

zhongzheng-system/src/main/java/com/zhongzheng/modules/user/service/impl/UserStudyRecordServiceImpl.java

@@ -1340,6 +1340,9 @@ public class UserStudyRecordServiceImpl extends ServiceImpl<UserStudyRecordMappe
                         .eq(UserPeriodStatus::getStatus, 1)
                         .eq(UserPeriodStatus::getPeriodStatus, 1));
             }
+            if(Validator.isEmpty(copyUserPeriodStatus)){
+                throw new CustomException("同步学时数据错误");
+            }
             LambdaQueryWrapper<UserStudyRecordPhoto> lqwPhoto = Wrappers.lambdaQuery();
             lqwPhoto.eq(UserStudyRecordPhoto::getPeriodId, userPeriodStatus.getId());
             lqwPhoto.eq(UserStudyRecordPhoto::getRecordId, vo.getRecordId());