From ca2b76f18f401a6b08b771ccc8b9448c9f4a0961 Mon Sep 17 00:00:00 2001
From: Fitim Vata <fitimvata28@gmail.com>
Date: Mon, 15 May 2023 12:14:05 +0200
Subject: [PATCH] [Fix] Fix undefined array key 0 when checking $retry_errors
 in process_payment method.

---
 .../ppcp-wc-gateway/src/Gateway/PayPalGateway.php   | 13 ++++++++-----
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/modules/ppcp-wc-gateway/src/Gateway/PayPalGateway.php b/modules/ppcp-wc-gateway/src/Gateway/PayPalGateway.php
index 0e71fa812..06722c6aa 100644
--- a/modules/ppcp-wc-gateway/src/Gateway/PayPalGateway.php
+++ b/modules/ppcp-wc-gateway/src/Gateway/PayPalGateway.php
@@ -486,12 +486,15 @@ class PayPalGateway extends \WC_Payment_Gateway {
 				'INSTRUMENT_DECLINED'   => __( 'Instrument declined.', 'woocommerce-paypal-payments' ),
 				'PAYER_ACTION_REQUIRED' => __( 'Payer action required, possibly overcharge.', 'woocommerce-paypal-payments' ),
 			);
-			$retry_errors        = array_filter(
-				array_keys( $retry_keys_messages ),
-				function ( string $key ) use ( $error ): bool {
-					return $error->has_detail( $key );
-				}
+			$retry_errors        = array_values(
+				array_filter(
+					array_keys( $retry_keys_messages ),
+					function ( string $key ) use ( $error ): bool {
+						return $error->has_detail( $key );
+					}
+				)
 			);
+
 			if ( $retry_errors ) {
 				$retry_error_key = $retry_errors[0];