diff --git a/go/chao-sdk-core/pkg/datafetcher/datafetcher.go b/go/chao-sdk-core/pkg/datafetcher/datafetcher.go
index cb7972b..0d44972 100644
--- a/go/chao-sdk-core/pkg/datafetcher/datafetcher.go
+++ b/go/chao-sdk-core/pkg/datafetcher/datafetcher.go
@@ -86,12 +86,14 @@ func (ds *DataFetcher[T]) FetchMissingAndFillLocal(ctx context.Context, uids []s
 		if err != nil {
 			return nil, err
 		}
+		if len(serverData) > 0 {
+			if err := ds.batchInsert(ctx, serverData); err != nil {
+				return nil, err
+			}
 
-		if err := ds.batchInsert(ctx, serverData); err != nil {
-			return nil, err
+			localData = append(localData, serverData...)
 		}
 
-		localData = append(localData, serverData...)
 	}
 
 	return localData, nil
diff --git a/go/chao-sdk-core/pkg/db/group_member_model.go b/go/chao-sdk-core/pkg/db/group_member_model.go
index 4f980fb..33436ae 100644
--- a/go/chao-sdk-core/pkg/db/group_member_model.go
+++ b/go/chao-sdk-core/pkg/db/group_member_model.go
@@ -194,7 +194,7 @@ func (d *DataBase) InsertGroupMember(ctx context.Context, groupMember *model_str
 func (d *DataBase) BatchInsertGroupMember(ctx context.Context, groupMemberList []*model_struct.LocalGroupMember) error {
 	d.groupMtx.Lock()
 	defer d.groupMtx.Unlock()
-	return errs.WrapMsg(d.conn.WithContext(ctx).Create(groupMemberList).Error, "BatchInsertMessageList failed")
+	return errs.WrapMsg(d.conn.WithContext(ctx).Create(groupMemberList).Error, "BatchInsertGroupMember failed")
 }
 
 func (d *DataBase) DeleteGroupMember(ctx context.Context, groupID, userID string) error {