Why does the request validation fail in VK api?

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Request validation fails in VK api? What's wrong?
I received a token from the link:

https://oauth.vk.com/authorize?client_id=тут id созданного standalone приложения&scope=groups,wall,offline,photos&redirect_uri=https://oauth.vk.com/blank.html&display=page&v=5.21&response_type=token

php request code from the server:

function sendVK($message) {
  $owner_id = 'тут id группы с минусом';
  $scope = 'groups,wall,offline,photos';
  
    $url = 'https://api.vk.com/method/wall.post';
    $params = array(
        'owner_id' => $owner_id,
    'from_group' => '1',
        'message' => $message,
        'access_token' => 'тут токен полученный по ссылке выше',
        'v' => '5.62',
    );
  echo "".$result;
}

$message = "HEllo!";
sendVK($message);

when called, it gives error code 17, which means:
User validation is required.
The action requires confirmation - you need to redirect the user to the service page for validation.
And it is necessary to publish from the script to the group