diff --git a/modules/modelarts/resty.go b/modules/modelarts/resty.go
index afc5a14c0..28fcdd49a 100755
--- a/modules/modelarts/resty.go
+++ b/modules/modelarts/resty.go
@@ -30,9 +30,11 @@ const (
 	errorCodeExceedLimit = "ModelArts.0118"
 
 	//notebook 2.0
-	urlNotebook2          = "/notebooks"
+	urlNotebook2 = "/notebooks"
 
+	//error code
 	modelartsIllegalToken = "ModelArts.6401"
+	NotebookNotFound      = "ModelArts.6404"
 )
 
 func getRestyClient() *resty.Client {
diff --git a/routers/repo/download.go b/routers/repo/download.go
index 5b8982102..f1b6e09b7 100755
--- a/routers/repo/download.go
+++ b/routers/repo/download.go
@@ -28,7 +28,8 @@ func ServeData(ctx *context.Context, name string, reader io.Reader) error {
 		buf = buf[:n]
 	}
 
-	ctx.Resp.Header().Set("Cache-Control", "public,max-age=86400")
+	//ctx.Resp.Header().Set("Cache-Control", "public,max-age=86400")
+	ctx.Resp.Header().Set("Cache-Control", "max-age=0")
 	name = path.Base(name)
 
 	// Google Chrome dislike commas in filenames, so let's change it to a space
diff --git a/routers/repo/modelarts.go b/routers/repo/modelarts.go
index 7e9ae3c09..9dea34c82 100755
--- a/routers/repo/modelarts.go
+++ b/routers/repo/modelarts.go
@@ -307,7 +307,7 @@ func NotebookDebug2(ctx *context.Context) {
 		ctx.RenderWithErr(err.Error(), tplModelArtsNotebookIndex, nil)
 		return
 	}
-	
+
 	ctx.Redirect(result.Url)
 }
 
@@ -387,7 +387,7 @@ func NotebookManage(ctx *context.Context) {
 			log.Error("ManageNotebook2(%s) failed:%v", task.JobName, err.Error(), ctx.Data["MsgID"])
 			resultCode = "-1"
 			errorMsg = err.Error()
-			if strings.Contains(err.Error(), "ModelArts.6404") {
+			if strings.Contains(err.Error(), modelarts.NotebookNotFound) {
 				errorMsg = "the job's version is too old and can not be restarted"
 			}
 			break
@@ -428,8 +428,12 @@ func NotebookDel(ctx *context.Context) {
 	_, err := modelarts.DelNotebook2(jobID)
 	if err != nil {
 		log.Error("DelNotebook2(%s) failed:%v", task.JobName, err.Error())
-		ctx.ServerError("DelNotebook2 failed", err)
-		return
+		if strings.Contains(err.Error(), modelarts.NotebookNotFound) {
+			log.Info("old notebook version")
+		} else {
+			ctx.ServerError("DelNotebook2 failed", err)
+			return
+		}
 	}
 
 	err = models.DeleteJob(task)
diff --git a/routers/repo/repo_statistic.go b/routers/repo/repo_statistic.go
index dce183f49..d9545f696 100755
--- a/routers/repo/repo_statistic.go
+++ b/routers/repo/repo_statistic.go
@@ -106,7 +106,7 @@ func RepoStatisticDaily(date string) {
 		repoStat := models.RepoStatistic{
 			RepoID:                repo.ID,
 			Date:                  date,
-			Name:                  repo.Name,
+			Name:                  repo.Alias,
 			IsPrivate:             repo.IsPrivate,
 			IsMirror:              repo.IsMirror,
 			OwnerName:             repo.OwnerName,
@@ -282,7 +282,7 @@ func RepoStatisticDaily(date string) {
 }
 
 func getDistinctProjectName(repo *models.Repository) string {
-	return repo.OwnerName + "/" + repo.Name
+	return repo.OwnerName + "/" + repo.Alias
 }
 
 func getDatasetSize(repo *models.Repository) (int64, error) {