diff --git a/frameworks/ans/core/src/ans_manager_proxy.cpp b/frameworks/ans/core/src/ans_manager_proxy.cpp
index ae493cd9da4650a7e9b8d16dc5557db6d359d2ce..b7ac0f7d019a35e00b50d959efe43faedba3d69a 100644
--- a/frameworks/ans/core/src/ans_manager_proxy.cpp
+++ b/frameworks/ans/core/src/ans_manager_proxy.cpp
@@ -354,10 +354,12 @@ ErrCode AnsManagerProxy::GetSlotByType(const NotificationConstant::SlotType &slo
         return ERR_ANS_PARCELABLE_FAILED;
     }
 
-    slot = reply.ReadParcelable<NotificationSlot>();
-    if (slot == nullptr) {
-        ANS_LOGW("[GetSlotByType] fail: read slot failed");
-        return ERR_ANS_PARCELABLE_FAILED;
+    if (result == ERR_OK) {
+        slot = reply.ReadParcelable<NotificationSlot>();
+        if (slot == nullptr) {
+            ANS_LOGW("[GetSlotByType] fail: read slot failed");
+            return ERR_ANS_PARCELABLE_FAILED;
+        }
     }
 
     return result;
@@ -418,10 +420,12 @@ ErrCode AnsManagerProxy::GetSlotGroup(const std::string &groupId, sptr<Notificat
         return ERR_ANS_PARCELABLE_FAILED;
     }
 
-    group = reply.ReadParcelable<NotificationSlotGroup>();
-    if (group == nullptr) {
-        ANS_LOGW("[GetSlotGroup] fail: read group failed");
-        return ERR_ANS_PARCELABLE_FAILED;
+    if (result == ERR_OK) {
+        group = reply.ReadParcelable<NotificationSlotGroup>();
+        if (group == nullptr) {
+            ANS_LOGW("[GetSlotGroup] fail: read group failed");
+            return ERR_ANS_PARCELABLE_FAILED;
+        }
     }
 
     return result;
diff --git a/interfaces/kits/napi/ans/src/unsubscribe.cpp b/interfaces/kits/napi/ans/src/unsubscribe.cpp
index f50a80441ec54dab0709180b47b0998aee78a388..a8b188eeb6b89721c214b3d63a916ee5b17339e3 100644
--- a/interfaces/kits/napi/ans/src/unsubscribe.cpp
+++ b/interfaces/kits/napi/ans/src/unsubscribe.cpp
@@ -16,6 +16,8 @@
 #include "unsubscribe.h"
 #include "subscribe.h"
 
+#include "ans_inner_errors.h"
+
 namespace OHOS {
 namespace NotificationNapi {
 const int UNSUBSCRIBE_MAX_PARA = 2;
@@ -48,8 +50,9 @@ napi_value ParseParameters(const napi_env &env, const napi_callback_info &info,
 
     SubscriberInstancesInfo subscriberInstancesInfo;
     if (!HasNotificationSubscriber(env, argv[0], subscriberInstancesInfo)) {
-        return nullptr;
+        ANS_LOGW("Subscriber not found");
     }
+
     paras.objectInfo = subscriberInstancesInfo.subscriber;
     ANS_LOGI("ObjectInfo = %{public}p start", paras.objectInfo);
 
@@ -91,6 +94,12 @@ napi_value Unsubscribe(napi_env env, napi_callback_info info)
             ANS_LOGI("Unsubscribe napi_create_async_work start");
             AsyncCallbackInfoUnsubscribe *asynccallbackinfo = (AsyncCallbackInfoUnsubscribe *)data;
 
+            if (asynccallbackinfo->objectInfo == nullptr) {
+                ANS_LOGE("invalid object info");
+                asynccallbackinfo->info.errorCode = ERR_ANS_INVALID_PARAM;
+                return;
+            }
+
             asynccallbackinfo->info.errorCode =
                 NotificationHelper::UnSubscribeNotification(*(asynccallbackinfo->objectInfo));
         },
diff --git a/sa_profile/3203.xml b/sa_profile/3203.xml
index 7f45c1fc08c584b6ff62c2b12119baacbd64c0e1..ccaa7c4fbe92e073c425e04ecd56b914ac888b9a 100755
--- a/sa_profile/3203.xml
+++ b/sa_profile/3203.xml
@@ -17,6 +17,8 @@
     <systemability>
         <name>3203</name>
         <libpath>/system/lib/libans.z.so</libpath>
+        <depend>3299</depend>
+        <depend-time-out>5000</depend-time-out>
         <run-on-create>true</run-on-create>
         <distributed>false</distributed>
         <dump-level>1</dump-level>
diff --git a/services/ans/src/advanced_notification_service.cpp b/services/ans/src/advanced_notification_service.cpp
index 875112f77e009f61afabe4f21fd5427ad87944db..d67e8c03193704caa31cbd63f33b0f079f710ba1 100644
--- a/services/ans/src/advanced_notification_service.cpp
+++ b/services/ans/src/advanced_notification_service.cpp
@@ -1403,10 +1403,10 @@ void AdvancedNotificationService::OnBundleRemoved(const sptr<NotificationBundleO
 {
     ANS_LOGD("%{public}s", __FUNCTION__);
 
-    handler_->PostTask(std::bind([&]() {
+    handler_->PostTask(std::bind([bundleOption]() {
         ErrCode result = NotificationPreferences::GetInstance().RemoveNotificationForBundle(bundleOption);
         if (result != ERR_OK) {
-            ANS_LOGE("NotificationPreferences::RemoveNotificationForBundle failed: %{public}d", result);
+            ANS_LOGW("NotificationPreferences::RemoveNotificationForBundle failed: %{public}d", result);
         }
     }));
 }