Error: Could not fetch URL - HTTPSConnectionPool(host='web.archive.org', port=443): Max retries exceeded with url: /web/20210126131828/https://docs.microsoft.com/en-us/dotnet/standard/exceptions/how-to-create-user-defined-exceptions (Caused by NewConnectionError("HTTPSConnection(host='web.archive.org', port=443): Failed to establish a new connection: [Errno 111] Connection refused"))