diff --git a/src/main/java/org/tron/core/actuator/UnfreezeBalanceActuator.java b/src/main/java/org/tron/core/actuator/UnfreezeBalanceActuator.java
index e24f09d825a..1be62db319d 100755
--- a/src/main/java/org/tron/core/actuator/UnfreezeBalanceActuator.java
+++ b/src/main/java/org/tron/core/actuator/UnfreezeBalanceActuator.java
@@ -79,7 +79,8 @@ public boolean execute(TransactionResultCapsule ret) throws ContractExeException
       }
 
       AccountCapsule receiverCapsule = dbManager.getAccountStore().get(receiverAddress);
-      if (receiverAddressIsValid(receiverCapsule)) {
+      if (dbManager.getDynamicPropertiesStore().getAllowTvmConstantinople() == 0 ||
+          (receiverCapsule != null && receiverCapsule.getType() != AccountType.Contract)) {
         switch (unfreezeBalanceContract.getResource()) {
           case BANDWIDTH:
             receiverCapsule.addAcquiredDelegatedFrozenBalanceForBandwidth(-unfreezeBalance);
@@ -205,10 +206,6 @@ public boolean execute(TransactionResultCapsule ret) throws ContractExeException
     return true;
   }
 
-  private boolean receiverAddressIsValid(AccountCapsule receiverCapsule) {
-    return receiverCapsule != null && receiverCapsule.getType() != AccountType.Contract;
-  }
-
   @Override
   public boolean validate() throws ContractValidateException {
     if (this.contract == null) {
@@ -255,16 +252,11 @@ public boolean validate() throws ContractValidateException {
       }
 
       AccountCapsule receiverCapsule = dbManager.getAccountStore().get(receiverAddress);
-      if (receiverCapsule == null) {
+      if (dbManager.getDynamicPropertiesStore().getAllowTvmConstantinople() == 0
+          && receiverCapsule == null) {
         String readableReceiverAddress = StringUtil.createReadableString(receiverAddress);
-        if (dbManager.getDynamicPropertiesStore().getAllowTvmConstantinople() != 1) {
-          throw new ContractValidateException(
-              "Account[" + readableReceiverAddress + "] not exists");
-        } else {
-          logger.warn(
-              "Account[" + readableReceiverAddress + "] not exists,may be deleted");
-        }
-
+        throw new ContractValidateException(
+            "Receiver Account[" + readableReceiverAddress + "] not exists");
       }
 
       byte[] key = DelegatedResourceCapsule
@@ -282,16 +274,26 @@ public boolean validate() throws ContractValidateException {
           if (delegatedResourceCapsule.getFrozenBalanceForBandwidth() <= 0) {
             throw new ContractValidateException("no delegatedFrozenBalance(BANDWIDTH)");
           }
-          if (receiverAddressIsValid(receiverCapsule)
-              && receiverCapsule.getAcquiredDelegatedFrozenBalanceForBandwidth()
-              < delegatedResourceCapsule.getFrozenBalanceForBandwidth()) {
-
-            throw new ContractValidateException(
-                "AcquiredDelegatedFrozenBalanceForBandwidth[" + receiverCapsule
-                    .getAcquiredDelegatedFrozenBalanceForBandwidth() + "] < delegatedBandwidth["
-                    + delegatedResourceCapsule.getFrozenBalanceForBandwidth()
-                    + "],this should never happen");
 
+          if (dbManager.getDynamicPropertiesStore().getAllowTvmConstantinople() == 0) {
+            if (receiverCapsule.getAcquiredDelegatedFrozenBalanceForBandwidth()
+                < delegatedResourceCapsule.getFrozenBalanceForBandwidth()) {
+              throw new ContractValidateException(
+                  "AcquiredDelegatedFrozenBalanceForBandwidth[" + receiverCapsule
+                      .getAcquiredDelegatedFrozenBalanceForBandwidth() + "] < delegatedBandwidth["
+                      + delegatedResourceCapsule.getFrozenBalanceForBandwidth()
+                      + "],this should never happen");
+            }
+          } else {
+            if (receiverCapsule != null && receiverCapsule.getType() != AccountType.Contract
+                && receiverCapsule.getAcquiredDelegatedFrozenBalanceForBandwidth()
+                < delegatedResourceCapsule.getFrozenBalanceForBandwidth()) {
+              throw new ContractValidateException(
+                  "AcquiredDelegatedFrozenBalanceForBandwidth[" + receiverCapsule
+                      .getAcquiredDelegatedFrozenBalanceForBandwidth() + "] < delegatedBandwidth["
+                      + delegatedResourceCapsule.getFrozenBalanceForBandwidth()
+                      + "],this should never happen");
+            }
           }
 
           if (delegatedResourceCapsule.getExpireTimeForBandwidth() > now) {
@@ -302,15 +304,25 @@ public boolean validate() throws ContractValidateException {
           if (delegatedResourceCapsule.getFrozenBalanceForEnergy() <= 0) {
             throw new ContractValidateException("no delegateFrozenBalance(Energy)");
           }
-          if (receiverAddressIsValid(receiverCapsule)
-              && receiverCapsule.getAcquiredDelegatedFrozenBalanceForEnergy()
-              < delegatedResourceCapsule.getFrozenBalanceForEnergy()) {
-            throw new ContractValidateException(
-                "AcquiredDelegatedFrozenBalanceForEnergy[" + receiverCapsule
-                    .getAcquiredDelegatedFrozenBalanceForEnergy() + "] < delegatedEnergy["
-                    + delegatedResourceCapsule.getFrozenBalanceForEnergy() +
-                    "],this should never happen");
-
+          if (dbManager.getDynamicPropertiesStore().getAllowTvmConstantinople() == 0) {
+            if (receiverCapsule.getAcquiredDelegatedFrozenBalanceForEnergy()
+                < delegatedResourceCapsule.getFrozenBalanceForEnergy()) {
+              throw new ContractValidateException(
+                  "AcquiredDelegatedFrozenBalanceForEnergy[" + receiverCapsule
+                      .getAcquiredDelegatedFrozenBalanceForEnergy() + "] < delegatedEnergy["
+                      + delegatedResourceCapsule.getFrozenBalanceForEnergy() +
+                      "],this should never happen");
+            }
+          } else {
+            if (receiverCapsule != null && receiverCapsule.getType() != AccountType.Contract
+                && receiverCapsule.getAcquiredDelegatedFrozenBalanceForEnergy()
+                < delegatedResourceCapsule.getFrozenBalanceForEnergy()) {
+              throw new ContractValidateException(
+                  "AcquiredDelegatedFrozenBalanceForEnergy[" + receiverCapsule
+                      .getAcquiredDelegatedFrozenBalanceForEnergy() + "] < delegatedEnergy["
+                      + delegatedResourceCapsule.getFrozenBalanceForEnergy() +
+                      "],this should never happen");
+            }
           }
 
           if (delegatedResourceCapsule.getExpireTimeForEnergy(dbManager) > now) {
diff --git a/src/test/java/org/tron/core/actuator/UnfreezeBalanceActuatorTest.java b/src/test/java/org/tron/core/actuator/UnfreezeBalanceActuatorTest.java
index f0a9e686a00..1a4f1d291db 100644
--- a/src/test/java/org/tron/core/actuator/UnfreezeBalanceActuatorTest.java
+++ b/src/test/java/org/tron/core/actuator/UnfreezeBalanceActuatorTest.java
@@ -375,7 +375,7 @@ public void testUnfreezeDelegatedBalanceForBandwidthWithDeletedReceiver() {
       actuator.validate();
       actuator.execute(ret);
     } catch (ContractValidateException e) {
-      Assert.assertEquals(e.getMessage(),"Account[a0abd4b9367799eaa3197fecb144eb71de1e049150] not exists");
+      Assert.assertEquals(e.getMessage(),"Receiver Account[a0abd4b9367799eaa3197fecb144eb71de1e049150] not exists");
     } catch (ContractExeException e) {
       Assert.assertFalse(e instanceof ContractExeException);
     }
@@ -583,7 +583,7 @@ public void testUnfreezeDelegatedBalanceForCpuWithDeletedReceiver() {
       actuator.validate();
       actuator.execute(ret);
     } catch (ContractValidateException e) {
-      Assert.assertEquals(e.getMessage(),"Account[a0abd4b9367799eaa3197fecb144eb71de1e049150] not exists");
+      Assert.assertEquals(e.getMessage(),"Receiver Account[a0abd4b9367799eaa3197fecb144eb71de1e049150] not exists");
     } catch (ContractExeException e) {
       Assert.assertFalse(e instanceof ContractExeException);
     }