Concurrent Request Reports format XML was terminated with error Signal 11

This problem was started on 26 June:
1) Please see the generated log file:

+---------------------------------------------------------------------------+
XX Customizaciones SF: Version : UNKNOWN

Copyright (c) 1979, 1999, Oracle Corporation. All rights reserved.

XXXLICIVA2 module: XX VEN Libro IVA Compras
+---------------------------------------------------------------------------+

Hora actual del sistema: 26-JUN-2012 11:02:48

+---------------------------------------------------------------------------+


+-----------------------------
| Iniciando la ejecución del programa concurrente...
+-----------------------------

Argumentos:
------------
P_ORG_ID='3682'
P_SET_OF_BOOKS_ID='948'
P_PERIOD='JUN-12'
P_LIBRO7='N'
------------

Environment will now switch to UTF-8 code-set.
Parts of this log file may not display correctly
as a result. This is an expected behavior.

XML_REPORTS_XENVIRONMENT is :
/ofpr/opt/oracle/ofprora/8.0.6/guicommon6/tk60/admin/Tk2Motif_UTF8.rgb