fixed domain of url shorter not working

internal/menue.php

@@ -25,7 +25,7 @@ function getMenu($page){
             <a href="/Projekte/snowboy.php">Installation von Snowboy</a><br>
         </div>
     </div>
-    <a href="//kurz.ml">URL K&uuml;rzer</a>
+    <a href="//kuerzer.ml">URL K&uuml;rzer</a>
     <div class="dropdown">
         <a href="#" $status>Status</a>
         <div class="dropdown-content">