Laravel localize "setlocale(): Argument #1 ($category) must be of type int, Illuminate\Http\Request given" error

I developed multi language web site in Laravel 10. Everything was working fine, since composer does not support laravel 10 libraries on my server, I created a laravel 9 project and moved only the following folders;

/app
/public
/resources
/routes
/composer.json

then I did composer install and php artisan optimize, the result was successful. But the problem is; When I access my website, I get the following error:

setlocale(): Argument #1 ($category) must be of type int, Illuminate\Http\Request given

/app/Http/Kernel.php :

protected $middlewareGroups = [
    'web' => [
        \App\Http\Middleware\EncryptCookies::class,
        \Illuminate\Cookie\Middleware\AddQueuedCookiesToResponse::class,
        \Illuminate\Session\Middleware\StartSession::class,
        \Illuminate\View\Middleware\ShareErrorsFromSession::class,
        \App\Http\Middleware\VerifyCsrfToken::class,
        \Illuminate\Routing\Middleware\SubstituteBindings::class,
        **\App\Http\Middleware\SetLocale::class**, // <- **locale class is here** 
    ],

    'api' => [
        // \Laravel\Sanctum\Http\Middleware\EnsureFrontendRequestsAreStateful::class,
        \Illuminate\Routing\Middleware\ThrottleRequests::class.':api',
        \Illuminate\Routing\Middleware\SubstituteBindings::class,
    ],
];
protected $middlewareAliases = [
    'auth' => \App\Http\Middleware\Authenticate::class,
    'auth.basic' => \Illuminate\Auth\Middleware\AuthenticateWithBasicAuth::class,
    'auth.session' => \Illuminate\Session\Middleware\AuthenticateSession::class,
    'cache.headers' => \Illuminate\Http\Middleware\SetCacheHeaders::class,
    'can' => \Illuminate\Auth\Middleware\Authorize::class,
    'guest' => \App\Http\Middleware\RedirectIfAuthenticated::class,
    'password.confirm' => \Illuminate\Auth\Middleware\RequirePassword::class,
    'signed' => \App\Http\Middleware\ValidateSignature::class,
    'throttle' => \Illuminate\Routing\Middleware\ThrottleRequests::class,
    'verified' => \Illuminate\Auth\Middleware\EnsureEmailIsVerified::class,
    **'setlocale' => \App\Http\Middleware\SetLocale::class,**
];

/app/Http/Middleware/SetLocale.php

class SetLocale {
    public function handle(Request $request, Closure $next)
    {
        if (Session::has('locale')) {
            App::setLocale(Session::get('locale'));
        }
        return $next($request);
    }   
}

/routes/web.php

Route::get('/', function () {
    return redirect(app()->getLocale());
})->name('home');
Route::get('/setlang', [Controller::class, 'changeLanguage'])->name('setlang');
Route::group(
[
    'prefix' => '{locale}',
    'where' => ['locale' => '[a-zA-Z]{2}'],
    'middleware' => 'setlocale'
],
function () {
    Route::get('/', [Controller::class, 'homeview']);
});

The error you're encountering is related to the setlocale() function in PHP. The setlocale() function is used to set the locale information for different aspects of your application, such as date and time formatting, number formatting, and string collation.

To fix this issue, you need to make changes to the middleware aliases in the /app/Http/Kernel.php file.
Please ensure that you have the following import statements at the top of the SetLocale middleware file:

use Illuminate\Http\Request;
use Illuminate\Support\Facades\App;
use Illuminate\Support\Facades\Session;