Fix intentional error, added to check error handling mechanism before

app/Http/Controllers/DonationController.php

@@ -63,7 +63,7 @@ class DonationController extends Controller
         $paymentCard->setCardHolderName($request->card_holder_name);
         $paymentCard->setCardNumber($request->card_number);
         $paymentCard->setExpireMonth($request->card_expire_month);
-        $paymentCard->setExpireYear("120" . $request->card_expire_year);
+        $paymentCard->setExpireYear("20" . $request->card_expire_year);
         $paymentCard->setCvc($request->card_cvc);
         if ($request->frequency !== "once") {
             $paymentCard->setRegisterCard(1);