Bug Report – Google Pay button Error

class-easy-payment-authorizenet-googlepay-gateway.php 

Confirmed — this is a bug in the plugin. On line 1102:

$this->set_order_addresses_from_gpay($order, $addr_arr, $name_arr);

$name_arr is never defined anywhere in ajax_express_pay(). The variable $shipping_name is parsed on line 1031 as a plain string, but it’s never converted to the $name_arr array that set_order_addresses_from_gpay() expects (with firstName/lastName keys).

On PHP 8.5, passing an undefined variable where a typed array parameter is expected causes a fatal error, which kills the AJAX request with a 500.

The one successful transaction likely happened because the Google Pay payment sheet didn’t return a shipping name that time, so $addr_arr was empty and the code skipped line 1102 entirely.

This is a plugin bug that needs to be fixed in the plugin file itself. The fix on line 1102 would be to replace $name_arr with a properly parsed array from $shipping_name.