Placing order in sandbox environment stopped at checkout:
Screen Error: The payment information you provided was not able to be processed. Please update your payment information and try again.

Back End Error message:

$250.00 - Credit Card Charge
11/16/2023 7:34:26 PM
FAILED
AMEX xxxx-xxxx-xxxx-7151
exp: 5/2026
:: HCP_PPP_1001 - Unknown Payment Error: Object reference not set to an instance of an object. :: STACKTRACE - Stack Trace at Hotcakes.Payment.Gateways.PayPalPaymentsPro.<>c__DisplayClass13_0.b__0() at System.Threading.Tasks.Task`1.InnerInvoke() at System.Threading.Tasks.Task.Execute() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at Hotcakes.Payment.Gateways.PayPalPaymentsPro.Charge(Transaction t) at Hotcakes.Payment.Gateways.PayPalPaymentsPro.ProcessTransaction(Transaction t)

I've re installed completely and it will work once or twice, even tried different test cc accounts.
Anyone?

Thanks