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/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)