How to fix MethodNotAllowedHttpException error in Laravel 5.7

i added a CRUD interface for my users table and instead of delete button i put a block button which blocks a user (sets bloque field in database from 0 to 1), i added a new function in my controller called block which is supposed to do the job yet i get a MethodNotAllowedHttpException error everytime i click the blocking button

this is the block method in UserController:

public function block($id){
      $user = User::find($id);
      $user->bloque = 1;
      $user->save();

      return redirect('/users')->with('success', 'Utilisateur bloqué');
    }

this is the blocking html fragment:

<form action="" method="get">
                  @csrf
                <!--  @method('DELETE')-->
                  <button class="btn btn-danger" type="submit">Bloquer</button>
                </form>

this is my web.php (routes):

Route::get('/block', [
    'uses' => 'UserController@block',
    'as' => 'users.block'
]);

Thanks in advance

via Chebli Mohamed