Fix order currency fatal error (#4319)

* Fix order currency fatal error

* Changelog and readme entries

---------

Co-authored-by: Anne Mirasol <[email protected]>

Author: wjrosa

changelog.txt

@@ -1,6 +1,7 @@
 *** Changelog ***
 
 = 9.5.1 - xxxx-xx-xx =
+* Fix - Fix fatal error when checking for a payment method availability using a specific order ID.
 
 = 9.5.0 - 2025-05-13 =
 * Fix - Fixes the listing of payment methods on the classic checkout when the Optimized Checkout is enabled.

includes/payment-methods/class-wc-stripe-upe-payment-method.php

@@ -287,9 +287,8 @@ public function is_enabled_at_checkout( $order_id = null, $account_domestic_curr
 		$currencies             = $this->get_supported_currencies();
 		if ( ! empty( $currencies ) ) {
 			if ( is_wc_endpoint_url( 'order-pay' ) && isset( $_GET['key'] ) ) {
-				$order          = wc_get_order( $order_id ? $order_id : absint( get_query_var( 'order-pay' ) ) );
-				$order_currency = $order->get_currency();
-				if ( ! in_array( $order_currency, $currencies, true ) ) {
+				$order = wc_get_order( $order_id ? $order_id : absint( get_query_var( 'order-pay' ) ) );
+				if ( ! $order || ! in_array( $order->get_currency(), $currencies, true ) ) {
 					return false;
 				}
 			} elseif ( ! in_array( $current_store_currency, $currencies, true ) ) {

readme.txt

@@ -111,5 +111,6 @@ If you get stuck, you can ask for help in the [Plugin Forum](https://wordpress.o
 == Changelog ==
 
 = 9.5.1 - xxxx-xx-xx =
+* Fix - Fix fatal error when checking for a payment method availability using a specific order ID.
 
 [See changelog for full details across versions](https://raw.githubusercontent.com/woocommerce/woocommerce-gateway-stripe/trunk/changelog.txt).