diff --git a/backend/app/service/app_install.go b/backend/app/service/app_install.go
index b10e0beef..96e49d86a 100644
--- a/backend/app/service/app_install.go
+++ b/backend/app/service/app_install.go
@@ -153,7 +153,7 @@ func (a AppInstallService) Operate(req request.AppInstalledOperate) error {
 		install.Status = constant.Running
 	case constant.Delete:
 		tx, ctx := getTxAndContext()
-		if err := deleteAppInstall(ctx, install, req.ForceDelete, req.DeleteBackup); err != nil {
+		if err := deleteAppInstall(ctx, install, req.DeleteBackup); err != nil && !req.ForceDelete {
 			tx.Rollback()
 			return err
 		}
diff --git a/backend/app/service/app_utils.go b/backend/app/service/app_utils.go
index ce98a39e8..930d1e0b7 100644
--- a/backend/app/service/app_utils.go
+++ b/backend/app/service/app_utils.go
@@ -152,7 +152,7 @@ func createLink(ctx context.Context, app model.App, appInstall *model.AppInstall
 	return nil
 }
 
-func deleteAppInstall(ctx context.Context, install model.AppInstall, forceDelete bool, deleteBackup bool) error {
+func deleteAppInstall(ctx context.Context, install model.AppInstall, deleteBackup bool) error {
 	op := files.NewFileOp()
 	appDir := install.GetPath()
 	dir, _ := os.Stat(appDir)
@@ -168,7 +168,7 @@ func deleteAppInstall(ctx context.Context, install model.AppInstall, forceDelete
 	if err := appInstallRepo.Delete(ctx, install); err != nil {
 		return err
 	}
-	if err := deleteLink(ctx, &install); err != nil && !forceDelete {
+	if err := deleteLink(ctx, &install); err != nil {
 		return err
 	}
 	if deleteBackup {
diff --git a/backend/app/service/website.go b/backend/app/service/website.go
index 87211354a..b4be7f59a 100644
--- a/backend/app/service/website.go
+++ b/backend/app/service/website.go
@@ -101,12 +101,18 @@ func (w WebsiteService) CreateWebsite(create request.WebsiteCreate) error {
 			req.Name = create.AppInstall.Name
 			req.AppDetailId = create.AppInstall.AppDetailId
 			req.Params = create.AppInstall.Params
-			var installErr error
-			appInstall, installErr = ServiceGroupApp.Install(ctx, req)
-			if installErr != nil {
-				return installErr
+			install, err := ServiceGroupApp.Install(ctx, req)
+			if err != nil {
+				return err
 			}
-			website.AppInstallID = appInstall.ID
+			website.AppInstallID = install.ID
+			appInstall = install
+		} else {
+			install, err := appInstallRepo.GetFirst(commonRepo.WithByID(create.AppInstallID))
+			if err != nil {
+				return err
+			}
+			appInstall = &install
 		}
 	}
 
@@ -265,7 +271,7 @@ func (w WebsiteService) DeleteWebsite(req request.WebsiteDelete) error {
 			return err
 		}
 		if !reflect.DeepEqual(model.AppInstall{}, appInstall) {
-			if err := deleteAppInstall(ctx, appInstall, req.ForceDelete, true); err != nil {
+			if err := deleteAppInstall(ctx, appInstall, true); err != nil && !req.ForceDelete {
 				return err
 			}
 		}
diff --git a/backend/app/service/website_utils.go b/backend/app/service/website_utils.go
index eaaf1674e..2949e0eb5 100644
--- a/backend/app/service/website_utils.go
+++ b/backend/app/service/website_utils.go
@@ -408,7 +408,7 @@ func handleWebsiteBackup(backupType, baseDir, backupDir, domain, backupName stri
 	if err != nil {
 		return err
 	}
-	nginxConfFile := fmt.Sprintf("%s/nginx/%s/conf/conf.d/%s.conf", constant.AppInstallDir, nginxInfo.Name, website.PrimaryDomain)
+	nginxConfFile := fmt.Sprintf("%s/nginx/%s/conf/conf.d/%s.conf", constant.AppInstallDir, nginxInfo.Name, website.Alias)
 	fileOp := files.NewFileOp()
 	if err := fileOp.CopyFile(nginxConfFile, tmpDir); err != nil {
 		return err
@@ -423,12 +423,12 @@ func handleWebsiteBackup(backupType, baseDir, backupDir, domain, backupName stri
 			return err
 		}
 		websiteDir := fmt.Sprintf("%s/%s/%s", constant.AppInstallDir, app.App.Key, app.Name)
-		if err := handleTar(websiteDir, tmpDir, fmt.Sprintf("%s.app.tar.gz", website.PrimaryDomain), ""); err != nil {
+		if err := handleTar(websiteDir, tmpDir, fmt.Sprintf("%s.app.tar.gz", website.Alias), ""); err != nil {
 			return err
 		}
 	}
-	websiteDir := path.Join(constant.AppInstallDir, "nginx", nginxInfo.Name, "www", "sites", website.PrimaryDomain)
-	if err := handleTar(websiteDir, tmpDir, fmt.Sprintf("%s.web.tar.gz", website.PrimaryDomain), ""); err != nil {
+	websiteDir := path.Join(constant.AppInstallDir, "nginx", nginxInfo.Name, "www", "sites", website.Alias)
+	if err := handleTar(websiteDir, tmpDir, fmt.Sprintf("%s.web.tar.gz", website.Alias), ""); err != nil {
 		return err
 	}
 	if err := handleTar(tmpDir, fmt.Sprintf("%s/%s", baseDir, backupDir), backupName+".tar.gz", ""); err != nil {