diff --git a/evcs-modules/evcs-common/src/main/java/com/xhpc/evcs/dto/DTOJsonHelper.java b/evcs-modules/evcs-common/src/main/java/com/xhpc/evcs/dto/DTOJsonHelper.java
index 9e489cab..1e39e48f 100644
--- a/evcs-modules/evcs-common/src/main/java/com/xhpc/evcs/dto/DTOJsonHelper.java
+++ b/evcs-modules/evcs-common/src/main/java/com/xhpc/evcs/dto/DTOJsonHelper.java
@@ -43,8 +43,7 @@ public class DTOJsonHelper {
                 }
             } catch (Exception e) {
                 String msg = e.getMessage();
-                log.error(msg);
-                throw new ServerInternalException(msg);
+                log.error("×operator3rdpty[{}]: {}", authSecretToken.getOperatorId3irdpty(), msg);
             }
         }
         return null;
diff --git a/evcs-modules/evcs-core/src/main/java/com/xhpc/evcs/notification/NotificationEquipChargeStatusTask.java b/evcs-modules/evcs-core/src/main/java/com/xhpc/evcs/notification/NotificationEquipChargeStatusTask.java
index 78a6cb6b..fea2ae38 100644
--- a/evcs-modules/evcs-core/src/main/java/com/xhpc/evcs/notification/NotificationEquipChargeStatusTask.java
+++ b/evcs-modules/evcs-core/src/main/java/com/xhpc/evcs/notification/NotificationEquipChargeStatusTask.java
@@ -60,7 +60,10 @@ public class NotificationEquipChargeStatusTask extends CoreDispatcher {
                         EquipChargeStatus equipChargeStatus = new EquipChargeStatus();
                         final String internetSerialNumber = REDIS.getCacheMapValue(orderkey.replace("order:", "pushOrder:"),
                                 "internetSerialNumber");
-                        if (!internetSerialNumber.startsWith(authSecretToken.getOperatorId3irdpty())) continue;
+                        if (internetSerialNumber == null || !internetSerialNumber.startsWith(authSecretToken.getOperatorId3irdpty())) {
+                            logger.error("order[{}] got no ISN: {} ", orderkey, internetSerialNumber);
+                            continue;
+                        }
                         equipChargeStatus.setStartChargeSeq(internetSerialNumber);
                         equipChargeStatus.setStartChargeSeqStat(2);
                         equipChargeStatus.setConnectorID(orderkey.substring(6, 22));