RFC_ERROR_SYSTEM_FAILURE

RFC Error

I tried updating some data into DEV, but i got this error message
(as below).
I would be very grateful if someone could actually let us know what does
the RFC trace file or SAP system log says so that we could determine the
problem.

The error msg:

MAPPING> Tue Dec 06 12:18:34 2005
MAPPING> [SAP_RFC] [ERROR] Connect failed: RFC Error Information:
Group: SAP system exception raised
Key = RFC_ERROR_SYSTEM_FAILURE
Message = See RFC trace file or SAP system log for more details

SAP 4.6C / Oracle 9.2 / AIX 5.2