diff --git a/app/Http/Controllers/OnlinePaymentController.php b/app/Http/Controllers/OnlinePaymentController.php
index 1df96990a873..66b85a335656 100644
--- a/app/Http/Controllers/OnlinePaymentController.php
+++ b/app/Http/Controllers/OnlinePaymentController.php
@@ -84,7 +84,7 @@ class OnlinePaymentController extends BaseController
         }
     }
 
-    private function error($paymentDriver, $exception, $showPayment)
+    private function error($paymentDriver, $exception, $showPayment = false)
     {
         if (is_string($exception)) {
             $displayError = $exception;
diff --git a/app/Models/Payment.php b/app/Models/Payment.php
index d3efe368cd52..8e496c602a33 100644
--- a/app/Models/Payment.php
+++ b/app/Models/Payment.php
@@ -162,7 +162,7 @@ class Payment extends EntityModel
         Event::fire(new PaymentCompleted($this));
     }
 
-    public function markFailed($failureMessage)
+    public function markFailed($failureMessage = '')
     {
         $this->payment_status_id = PAYMENT_STATUS_FAILED;
         $this->gateway_error = $failureMessage;
diff --git a/app/Ninja/PaymentDrivers/WePayPaymentDriver.php b/app/Ninja/PaymentDrivers/WePayPaymentDriver.php
index f98dc79446ec..13456e8f532f 100644
--- a/app/Ninja/PaymentDrivers/WePayPaymentDriver.php
+++ b/app/Ninja/PaymentDrivers/WePayPaymentDriver.php
@@ -215,6 +215,7 @@ class WePayPaymentDriver extends BasePaymentDriver
 
     public function handleWebHook($input)
     {
+        $accountGateway = $this->accountGateway;
         $accountId = $accountGateway->account_id;
 
         foreach (array_keys($input) as $key) {