custom report FIXED ASSETS are erroring out

HI,
  Current NLS_LANG and NLS_NUMERIC_CHARACTERS Environment Variables are :
American_America.UTF8

'.,'

Enter Password:
REP-1401: '': Fatal PL/SQL error occurred.
REP-0069: Internal error
REP-57054: In-process job terminated:Terminated with error:
REP-1401: '': Fatal PL/SQL error occurred.


Report Builder: Release 10.1.2.3.0 - Production on Fri Mar 4 11:42:46 2011

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Program exited with status 1
Concurrent Manager encountered an error while running Oracle*Report for your concurrent request 15159650.

Review your concurrent request log and/or report output file for more detailed information.