fix 导入订单，学校id存储问题

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

@@ -1564,7 +1564,7 @@ public class StudentRegistrationServiceImpl extends BaseServiceImpl<Long, Studen
         List<StudentRegistration> registrations = studentRegistrationDao.findStudentListByUserIdList(musicGroupId, userIds);
         for (StudentRegistration registration : registrations) {
             if(registration.getPaymentStatus().equals(PaymentStatusEnum.OPEN)||registration.getPaymentStatus().equals(PaymentStatusEnum.YES)){
-                throw new BizException("开启缴费/已缴费的学员不能删除");
+                throw new BizException(registration.getName()+"（"+registration.getPaymentStatus().getDesc()+"），不能删除");
             }
         }
         if (registrations.size() <= 0) {