Unaccounted Transactions Sweep Program fails with error

Hi,

 Getting the below message from Log,

EXCEPTION: update_xla_events: ORA-20001: APP-XLA-95103: An internal error occurr
ed.  Please inform your system administrator or support representative that:

An
 internal error has occurred in the program xla_events_pub_pkg.update_event.  OR
A-01086: savepoint 'BEFORE_EVENT_UPDATE' never established in this session or is
 invalid
ORA-20001: -: XLA-95103: An internal error occurred.  Please inform you
r system administrator or support representative that:

An internal error has oc
curred in the program xla_journal_entries_pkg.delete_journal_e
Failure in update_xla_events while updating XLA unaccounted events
end before_report_apxuatr:  current timestamp: 30-DEC-13 08.04.55.125654000 EURO