PayPal Commerce Webhook Error

Short message
Payments.PayPalCommerce error:
{"name":"VALIDATION_ERROR","message":"Invalid data provided","debug_id":"5741e0600a40a","information_link":"https://developer.paypal.com/docs/api/webhooks/#errors","details":[{"field":"url","location":"body","issue":"Not a valid webhook URL"}],"links":[]}
Full message
BraintreeHttp.HttpException: {"name":"VALIDATION_ERROR","message":"Invalid data provided","debug_id":"5741e0600a40a","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)
   at Nop.Plugin.Payments.PayPalCommerce.Services.ServiceManager.HandleCoreRequestAsync[TRequest,TResult](PayPalCommerceSettings settings, TRequest request)
   at Nop.Plugin.Payments.PayPalCommerce.Services.ServiceManager.<>c__DisplayClass35_0.<<CreateWebhookAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Nop.Plugin.Payments.PayPalCommerce.Services.ServiceManager.HandleFunctionAsync[TResult](Func`1 function)

* its is entered

I have a problem in Nopcommerce 4.5 with Paypal Commerce when you are trying to buy someting it is coming to payment step you are choosing paypal commerce and when you try to pay Debir or Credit Card , you are entering your card number , validation end date like 01/24 then CVV number like 567 then phone number and try to pay, its trying to load and stoping its not going to https://www.barbertrade.com/checkout/confirm section stopping.

I looked to the paypal account everything is looking right. On log side there is no error log.

What we have to do.

https://ibb.co/VSbt6fJ please look that screenshot

Short message
Payments.PayPalCommerce error:
{"name":"VALIDATION_ERROR","message":"Invalid data provided","debug_id":"5741e0600a40a","information_link":"https://developer.paypal.com/docs/api/webhooks/#errors","details":[{"field":"url","location":"body","issue":"Not a valid webhook URL"}],"links":[]}
Full message
BraintreeHttp.HttpException: {"name":"VALIDATION_ERROR","message":"Invalid data provided","debug_id":"5741e0600a40a","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)
   at Nop.Plugin.Payments.PayPalCommerce.Services.ServiceManager.HandleCoreRequestAsync[TRequest,TResult](PayPalCommerceSettings settings, TRequest request)
   at Nop.Plugin.Payments.PayPalCommerce.Services.ServiceManager.<>c__DisplayClass35_0.<<CreateWebhookAsync>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Nop.Plugin.Payments.PayPalCommerce.Services.ServiceManager.HandleFunctionAsync[TResult](Func`1 function)

* its is entered

Look at this suggestion above.