Authentication Error

[GianmarcoVarroneDev]

Hello, I'm trying to implemen this package in my app.
I wrote the following controller :

class RevolutAuthController extends Controller
{

    protected $authProvider;

    public function __construct()
    {
        $this->authProvider = new RevolutAuthProvider([
            'clientId' => getenv('REVOLUT_CLIENT_ID'),
            'privateKey' => file_get_contents(base_path('/privatecert.pem')),
            'redirectUri' => "http://my_domain/api/v1/revolut/auth/callback",
            'isSandbox' => true
        ]);
    }


    public function redirectToProvider()
    {
        return redirect($this->authProvider->getAuthorizationUrl(['scope' => "READ,WRITE,PAY"]));
    }




    public function handleRevolutCallback(Request $request)
    {
        $accessToken = $this->authProvider->getAccessToken('authorization_code', [
            'code' => $request->get('code')
        ]);

        if ($accessToken->hasExpired()) {
            $newAccessToken = $this->authProvider->getAccessToken('refresh_token', [
                'refresh_token' => $accessToken->getRefreshToken()
            ]);

            $accessToken = $newAccessToken;
        }
    }
}

The redirect to provider metod works properly and generates a link where I can authorize the app, the issue comes when i try to authorize the app with sms in the revolut side.

After filling in the authcode revolut says "Action is forbidden" and does not redirect to the redirect URI provided.

I have also tried to authorise the app manually via the revolut dashoboard and in that case it works properly.

Any idea on where the issue colud be?

Thank you