laravel 11 - The authorization grant type is not supported by the authorization server

hello , I am tring to work with passport in laravel 11 . I did -

* I installed laravel 11
*  I installed Passport -
 composer require laravel/passport
php artisan passport:install --uuids

*  I installed API
php artisan install:api

*I installed the Provider 
artisan make:provider AuthServiceProvider

I added the configuration of Passport to AuthServiceProvider

<?php

namespace App\Providers;

use Illuminate\Foundation\Support\Providers\AuthServiceProvider as ServiceProvider;
use Laravel\Passport\Passport;

class AuthServiceProvider extends ServiceProvider
{
    /**
     * Register services.
     */
    public function register(): void
    {
        //
    }

    /**
     * Bootstrap services.
     */
    public function boot(): void
    {
        $this->registerPolicies();
        Passport::ignoreRoutes();

        Passport::tokensExpireIn(now()->addDay(1));
        Passport::refreshTokensExpireIn(now()->addDay(30));
        Passport::personalAccessTokensExpireIn(now()->addMonth(6));

        Passport::tokensCan([
            'access-user-admin' => 'Access of User Admin Area',
        ]);
    }
}

I added those passports clients and password types -

php  artisan passport:client --password
AND
php  artisan passport:client --personal

I created those passport clients

I cleared the cach -

artisan config:clear
artisan cache:clear
composer dump-autoload

NOW , I go to postman and try to get this route -

/oath/token with this information -

POST -> /oath/token

data -> 
{
	grant_type:password
client_id:9c0adbf8-6da2-4bd4-a976-1e4d25a8b144
client_secret:J5787U5kN0J0CNmCfMadFyl0TBmB71FgBCXNjamK
email:[email protected]
password:123456
scope:*
}

the result -

{
    "error": "unsupported_grant_type",
    "error_description": "The authorization grant type is not supported by the authorization server.",
    "hint": "Check that all required parameters have been provided",
    "message": "The authorization grant type is not supported by the authorization server."
}

it is telling that Grant type is not suported . but , it is alredy installed .

and I can seed in database , oauth_clients , has the user .

at the log , shows this errors -

[2024-05-14 21:24:44] local.ERROR: The authorization grant type is not supported by the authorization server. {"exception":"[object] (Laravel\Passport\Exceptions\OAuthServerException(code: 2): The authorization grant type is not supported by the authorization server. at 


[previous exception] [object] (League\OAuth2\Server\Exception\OAuthServerException(code: 2): The authorization grant type is not supported by the authorization server. at /var/www/html/vendor/league/oauth2-server/src/Exception/OAuthServerException.php:124)