update

resources/views/layouts/full-page.blade.php

@@ -6,7 +6,6 @@
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width,initial-scale=1.0">
-    <meta name="csrf-token" content="{{ csrf_token() }}">
 
     <title>@if(! empty($header)){{ $header }} | @endif {{ Dcat\Admin\Admin::title() }}</title>
 

resources/views/layouts/page.blade.php

@@ -6,7 +6,6 @@
     <meta charset="utf-8">
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width,initial-scale=1.0">
-    <meta name="csrf-token" content="{{ csrf_token() }}">
 
     <title>{{ Dcat\Admin\Admin::title() }} @if(! empty($header)) | {{ $header }}@endif</title>
 

src/Admin.php

@@ -234,7 +234,7 @@ class Admin
     public static function registerApiRoutes()
     {
         $attributes = [
-            'prefix' => 'dcat-api',
+            'prefix' => admin_base_path('dcat-api'),
             'middleware' => config('admin.route.middleware'),
             'as' => 'dcat.api.',
         ];