MCP-792: Wrong error message is sent in email if order is rejected because of disabled product

Author: aa-kashk

app/code/Magento/Checkout/Model/GuestPaymentInformationManagement.php

@@ -120,6 +120,14 @@ public function savePaymentInformationAndPlaceOrder(
             //Have to do this hack because of savePaymentInformation() plugins.
             $this->saveRateLimitDisabled = true;
             $this->savePaymentInformation($cartId, $email, $paymentMethod, $billingAddress);
+        } catch (\Magento\Framework\Exception\LocalizedException $e) {
+            $this->getLogger()->critical(
+                'Placing an order with quote_id ' . $cartId . ' is failed: ' . $e->getMessage()
+            );
+            throw new CouldNotSaveException(
+                __($e->getMessage()),
+                $e
+            );
         } finally {
             $this->saveRateLimitDisabled = false;
         }
@@ -176,6 +184,10 @@ public function savePaymentInformation(
         }
         $this->limitShippingCarrier($quote);
 
+        if (!$quote->getItemsQty()) {
+            throw new CouldNotSaveException(__('Some of the products are disabled.'));
+        }
+
         $this->paymentMethodManagement->set($cartId, $paymentMethod);
         return true;
     }