Don't need admin subdirectory

webadmin/systemmonitor.php

@@ -12,7 +12,7 @@ if (isset($_POST['submitsystemmonitor'])) {
     # remain on this screen after clicking update
     $host  = $_SERVER['HTTP_HOST'];
     $uri   = rtrim(dirname($_SERVER['PHP_SELF']), '/\\');
-    header("Location: http://$host$uri/admin/system_monitor.html");
+    header("Location: http://$host$uri/system_monitor.html");
 
     sleep(3);