fix wrong method scope

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 ---
 
+## unreleased
+
+- fix wrong method scope
+
+---
+
 ## 1.0.0.1 (2021-12-13)
 
 - improve documentation

Modules/Controller/Admin/NavigationTreeSortedMenus.php

@@ -24,7 +24,7 @@ class NavigationTreeSortedMenus extends NavigationTreeSortedMenus_parent
     /**
      * @param $dom
      */
-    public function _addLinks($dom)
+    protected function _addLinks($dom)
     {
         $this->d3SortMenus();