Fix exception thrown due to lack of pre-validation on the model.

closes #1158

app/Http/Requests/Admin/Servers/Databases/StoreServerDatabaseRequest.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace Pterodactyl\Http\Requests\Admin\Servers\Databases;
+
+use Pterodactyl\Http\Requests\Admin\AdminFormRequest;
+
+class StoreServerDatabaseRequest extends AdminFormRequest
+{
+    /**
+     * Validation rules for database creation.
+     *
+     * @return array
+     */
+    public function rules(): array
+    {
+        return [
+            'database' => 'required|string|min:1|max:24',
+            'remote' => 'required|string|regex:/^[0-9%.]{1,15}$/',
+            'database_host_id' => 'required|integer|exists:database_hosts,id',
+        ];
+    }
+}