small fix

buckaroo3.php

@@ -557,11 +557,12 @@ public function isPaymentModeActive($method)
     {
         $isLive = (int) \Configuration::get(Config::BUCKAROO_TEST);
         $configArray = $this->getBuckarooConfigService()->getConfigArrayForMethod($method);
-        if (!empty($configArray)) {
+
+        if (!empty($configArray) && isset($configArray['mode'])) {
             if ($isLive === 0) {
-                return isset($configArray['mode']) && $configArray['mode'] === 'test';
+                return $configArray['mode'] === 'test';
             } elseif ($isLive === 1) {
-                return isset($configArray['mode']) && $configArray['mode'] === 'live';
+                return $configArray['mode'] === 'live';
             }
         }
         return false;

controllers/front/ajax.php

@@ -29,16 +29,14 @@ public function postProcess()
         $currency = $this->context->currency;
 
         $locale = \Tools::getContextLocale($this->context);
-
         $action = Tools::getValue('action');
-        switch ($action) {
-            case 'getTotalCartPrice':
-                $this->getTotalCartPrice($currency,$locale);
-                break;
-            default:
+
+        if($action == 'getTotalCartPrice'){
+          $this->getTotalCartPrice($locale,$currency);
         }
     }
-    private function getTotalCartPrice($currency,$locale){
+    function getTotalCartPrice($locale,$currency){
+        //ToDo Refactor this
         $cart = $this->context->cart;
         $paymentFee = Tools::getValue('paymentFee');
         if (!$paymentFee) {