This breaks literally the entire panel.

app/Services/Nests/NestUpdateService.php

@@ -0,0 +1,47 @@
+<?php
+/**
+ * Pterodactyl - Panel
+ * Copyright (c) 2015 - 2017 Dane Everitt <dane@daneeveritt.com>.
+ *
+ * This software is licensed under the terms of the MIT license.
+ * https://opensource.org/licenses/MIT
+ */
+
+namespace Pterodactyl\Services\Nests;
+
+use Pterodactyl\Contracts\Repository\NestRepositoryInterface;
+
+class NestUpdateService
+{
+    /**
+     * @var \Pterodactyl\Contracts\Repository\NestRepositoryInterface
+     */
+    protected $repository;
+
+    /**
+     * NestUpdateService constructor.
+     *
+     * @param \Pterodactyl\Contracts\Repository\NestRepositoryInterface $repository
+     */
+    public function __construct(NestRepositoryInterface $repository)
+    {
+        $this->repository = $repository;
+    }
+
+    /**
+     * Update a nest and prevent changing the author once it is set.
+     *
+     * @param int   $nest
+     * @param array $data
+     * @throws \Pterodactyl\Exceptions\Model\DataValidationException
+     * @throws \Pterodactyl\Exceptions\Repository\RecordNotFoundException
+     */
+    public function handle(int $nest, array $data)
+    {
+        if (! is_null(array_get($data, 'author'))) {
+            unset($data['author']);
+        }
+
+        $this->repository->withoutFresh()->update($nest, $data);
+    }
+}