Laravel error 419 page expired

Hello again Mr.Jo this issue is because you are missing a input of the CSRF token all you need to do is adding the CSRF with one of these ways 
First way

  <form method="POST" action="{{url('insert')}}">
  	<!-- CSRF is below this line -->
    @csrf
    <div >
      <input type="text" name="name" placeholder="please Enter your name" >
    </div>
    <input type="submit" value="send">
  </form>

Second way

  <form method="POST" action="{{url('insert')}}">
    <div >
      <!-- CSRF is below this line -->
      <input type="hidden" name="_token" value="{{ csrf_token() }}" />
      <input type="text" name="name" placeholder="please Enter your name" >
    </div>
    <input type="submit" value="send">
  </form>

Hope you be able to understand the idea of CSRF 
You can read about it in the Laravel protection https://laravel.com/docs/8.x/csrf

Best regards