使用JdSoft.Apple.Apns.Notifications进行推送发送时出现CryptographicExcep

我尝试从共享服务器发送推送。我使用的是JdSoft.Apple.Apns.Notifications.dll。我的项目在框架3.5中。这些是显示的错误。"

*出现内部错误。位于System.Security.Cryptography.CryptographicException.SthrowCryptographicException（Int32小时）System.Security.Cryptography.X509Certificates.X509Utils._LoadCertFromBlob（Byte[]rawData，IntPtr密码，UInt32 dwFlags，布尔持久密钥集，SafeCertContextHandle&pCertCtx）System.Security.Cryptography.X509Certificate.X509Certificate.LoadCertificateFromBlob（Byte[]rawData，对象密码，X509KeyStorageFlags keyStorageFlags）System.Security.Cryptography.X509Certificate.X509Certificate.ctor（Byte[]数据）System.Security.Cryptographic.X509Certificates.X509Certificate2.ctor（Byte[]rawData）JdSoft.Apple.Apns.Notifications.NotificationConnection.start（字符串p12File，字符串p12FilePassword）JdSoft.Apple.Apns.Notifications.NotificationConnection.ctor（字符串主机，Int32端口，字符串p12File，字符串p12FilePassword）JdSoft.Apple.Apns.Notifications.NotificationService.set_Connection（Int32值）JdSoft.Apple.Apns.Notifications.NotificationService.ctor（布尔沙盒，字符串p12File，字符串p13FilePassword，Int32连接）*"