I am trying to configure the paypal for first time, in paypalsmartpayment plugin configure, it'failed with below error after entering the crediental details.
Error
Short message
Payments.PayPalSmartPaymentButtons error:
One or more errors occurred. ({"name":"VALIDATION_ERROR","message":"Invalid data provided","debug_id":"f7da5d29e0be6","information_link":"https://developer.paypal.com/docs/api/webhooks/#errors","details":[{"field":"url","location":"body","issue":"Not a valid webhook URL"}],"links":[]})
Full message
System.AggregateException: One or more errors occurred. ({"name":"VALIDATION_ERROR","message":"Invalid data provided","debug_id":"f7da5d29e0be6","information_link":"https://developer.paypal.com/docs/api/webhooks/#errors","details":[{"field":"url","location":"body","issue":"Not a valid webhook URL"}],"links":[]})
---> BraintreeHttp.HttpException: {"name":"VALIDATION_ERROR","message":"Invalid data provided","debug_id":"f7da5d29e0be6","information_link":"https://developer.paypal.com/docs/api/webhooks/#errors","details":[{"field":"url","location":"body","issue":"Not a valid webhook URL"}],"links":[]}
at BraintreeHttp.HttpClient.Execute[T](T req)
--- End of inner exception stack trace ---
at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
at Nop.Plugin.Payments.PayPalSmartPaymentButtons.Services.ServiceManager.HandleCoreRequest[TRequest,TResult](PayPalSmartPaymentButtonsSettings settings, TRequest request)
at Nop.Plugin.Payments.PayPalSmartPaymentButtons.Services.ServiceManager.<>c__DisplayClass30_0.<CreateWebHook>b__0()
at Nop.Plugin.Payments.PayPalSmartPaymentButtons.Services.ServiceManager.HandleFunction[TResult](PayPalSmartPaymentButtonsSettings settings, Func`1 function)
IP address
xx.xx.xx..xx
Customer admin@xxxx
Page URL
http://www.xxxx.in/Admin/PayPalSmartPaymentButtons/Configure
Referrer URL
http://www.xxxxx.in/Plugins/PayPalSmartPaymentButtons/Configure