Error message 'SBL-RPT-50524' is displayed while generating a BIP report on Siebel

Hi Team, we are not able to generate a report on specific Opportunity records in Siebel application and getting the below error message. Can you please check and help us on this. Log is :- XMLPReportServer 18874396 10248 5712 \Siebel\8.1.1.11\ses\siebsrvr\log\XMLPReportServer_0018_18874396.log 8.1.1.11 SIA [23030] ENU (httptransport.cpp (1720)) SBL-EAI-04117: HTTP Request error during 'Submitting Data SendHTTP request': 'Status code - 500' ObjMgrLog    Error    1    00000003558c1cbc:0    2015-06-26 07:05:53    (httptransport.cpp (1047)) SBL-EAI-04117: HTTP Request error during 'Submitting Data Send HTTP request': 'Status code - 500' ObjMgrLog    Error    1    00000003558c1cbc:0    2015-06-26 07:05:53    (soapbinding.cpp (676)) SBL-EAI-04304: Unknown Part ':oracle.xdo.webservice.exception.OperationFailedException'  for operation 'runReport' exists in SOAP message. ObjMgrBusServiceLog    Error    1    00000003558c1cbc:0    2015-06-26 07:05:53    (outdisp.cpp (257)) SBL-EAI-04308: Operation 'runReport' of Web Service '