Error Enabling SAP Listerner in WM 7.1 Using SAP 6.5


I get the following error when I try to enable a SAP Listerner

[ART.115.3258] Adapter Runtime (Listener): Fatal error in listener SAPTestBNSAPInvoice.Listener:BNSAP_SAP_Invoice_v002_Listener. See error log for details [SAP.104.9151] WmSAP Adapter: Error on initializing listener: com/wm/app/b2b/server/ServerException

Can anybody please let me know what the issue might be?

Gautam Parnaik