diff --git a/interfaces/kits/js/backup/session_restore_n_exporter.cpp b/interfaces/kits/js/backup/session_restore_n_exporter.cpp
index 0f3593067d484757ae18e93e28be0b3f2f9832ca..6fadfab5060d6f5b56f0d74566361678912f571a 100644
--- a/interfaces/kits/js/backup/session_restore_n_exporter.cpp
+++ b/interfaces/kits/js/backup/session_restore_n_exporter.cpp
@@ -70,6 +70,7 @@ static void OnFileReady(weak_ptr<GeneralCallbacks> pCallbacks, const BFileInfo &
 
 static void onBundleBegin(weak_ptr<GeneralCallbacks> pCallbacks, ErrCode err, const BundleName name)
 {
+    HILOGE("onBundleBegin");
     if (pCallbacks.expired()) {
         HILOGI("callbacks is unbound");
         return;
@@ -84,7 +85,14 @@ static void onBundleBegin(weak_ptr<GeneralCallbacks> pCallbacks, ErrCode err, co
         return;
     }
 
+    HILOGE("onBundleBegin %{public}d", err);
     auto cbCompl = [name {name}](napi_env env, NError err) -> NVal {
+        size_t bufLength = 0;
+        char *buffer = (char *)malloc((bufLength + 1) * sizeof(char));
+        auto value = err.GetNapiErr(env);
+        napi_get_value_string_utf8(env, value, buffer, bufLength + 1, &bufLength);
+        HILOGE("GetNapiErr %{public}s", buffer);
+        free(buffer);
         return err ? NVal {env, err.GetNapiErr(env)} : NVal::CreateUTF8String(env, name);
     };