Encryption Exception error

Hello, I'm new using Codeigniter 4, I started to learn, when I tried to use the encryption library with the example in the manual it returns the error below.

this is the code, the same code as the manual.

PHP Code:

$config        = new \Config\Encryption();
 $config->key    = 'aBigsecret_ofAtleast32Characters';
$config->driver = 'OpenSSL';

$encrypter = \Config\Services::encrypter($config);
$ciphertext = $encrypter->encrypt($plainText);

// Outputs: This is a plain-text message!
echo $encrypter->decrypt($ciphertext); 


this is the error.

CodeIgniter\Encryption\Exceptions\EncryptionException

Unable to find an available {0} encryption handler.

SYSTEMPATH\Encryption\Exceptions\EncryptionException.php at line 19

PHP Code:

public static function forNoDriverRequested()
13    {
14        return new static(lang('Encryption.noDriverRequested'));
15    }
16 
17    public static function forNoHandlerAvailable()
18    {
19        return new static(lang('Encryption.noHandlerAvailable'));
20    }
21 
22    public static function forUnKnownHandler(string $driver = null)
23    {
24        return new static(lang('Encryption.unKnownHandler', [$driver]));
25    } 


sorry, but i have no idea what causes this error.

Have you enabled OpenSSL in your PHP.ini?

Have you enabled OpenSSL in your PHP.ini?

That was the problem, now it works normally, thank you very much.