خطا در پکیج پرداخت

@khanzadimahdi
سلام عزیز
من وقتی میخوام به درگاه متصل بشم خطای زیر ار میده
Object of class Shetabit\Multipay\Drivers\Payping\Payping could not be converted to string

$driverConfig = config()->get('payment.default');
        $target_add = target::create($data);
        $invoice = (new Invoice)->amount(1000);
        if ($target_add) {
            return Payment::via($driverConfig)->callbackUrl(route('payment.callback'))->purchase($invoice, function ($driver, $transactionId) use ($target_add) {
                $target_add->payment()->create([
                    'uuid' => $transactionId,
                    'amount' => '1000',
                    'transactionId' => $transactionId,
                    'driver' => $driver,
                    'status' => 0,
                ]);
            })->pay()->render();
        }