Error for panel installation on live server: GET /panel/installation HTTP/1.0

This is the error message from the console when trying to access the panel on MAMP/in build Kirby server:

It is similar to what this user postet but my accounts folder is empty so I cannot delete anything.
I have moved accounts and sessions to a storage folder and I think have set the correct paths:

<?php

require __DIR__ . '/../kirby/bootstrap.php';

$base = dirname(__DIR__);
$storage = $base . '/storage';

$kirby = new Kirby([
  'roots' => [
    'index' => __DIR__,

    'site' => $base . '/site',
    'content' => $base . '/content',

    'accounts' => $storage . '/accounts',
    'cache' => $storage . '/cache',
    'sessions' => $storage . '/sessions',
    'logs' => $storage . '/logs',
  ]
]);

echo $kirby->render();