Around March 25th, the payment function of my app suddenly failed to successfully parse payment information, while the previous functions were normal. The normal logic is that we will send payment information to this address on Apple（ https://buy.itunes.apple.com/verifyReceipt ）We will receive a parsed file in JSON format. But this time we did get an error, which is as follows 2025-03-26 16:46:58.0064 (HttpHelper.cs:78) Exception ex: System.Net.Http.HttpRequestException: The SSL connection could not be established, see inner exception. ---> System. Security.Authentication.AuthenticationException: Authentication failed because the remote party sent a TLS alert: 'HandshakeFailure'. We have tried many solutions and have not received any improvement. I would like to ask if you have recently upgraded something that has caused some old code to become unusable. Hope you can provide us with some solutions, thank you！