update

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

@@ -1169,7 +1169,7 @@ public class VipGroupServiceImpl extends BaseServiceImpl<Long, VipGroup> impleme
 		if(!isOk){
 			updateVipGroupStudentNumAndStatus(vipGroupId,classGroup,-1,false);
 			classGroupStudentMapperDao.deleteStudentByMusicGroupId(vipGroupId.toString(),userId);
-			if (studentPaymentOrder.getBalancePaymentAmount().doubleValue() > 0) {
+			if (studentPaymentOrder.getBalancePaymentAmount() != null && studentPaymentOrder.getBalancePaymentAmount().doubleValue() > 0) {
 				sysUserCashAccountService.updateBalance(userId, studentPaymentOrder.getBalancePaymentAmount(), PlatformCashAccountDetailTypeEnum.REFUNDS,
 						"VIP课购买失败");
 			}