集成DoDirect Paypal API代码

Question

我正在将DoDirect Paypal API代码集成到我的网站，我收到了以下错误。

DoDirectPayment failed: 
Array ( [TIMESTAMP] => 2012%2d09%2d11T04%3a56%3a46Z 
        [CORRELATIONID] => e293002f805d 
        [ACK] => Failure     
        [L_ERRORCODE0] => 10001 
        [L_SHORTMESSAGE0] => Internal%20Error 
        [L_LONGMESSAGE0] => Timeout%20processing%20request 
      )

我正在使用沙箱凭据。任何错误帮助将不胜感激。