An internal error has occurred in the program xla_ap_acct_hooks_pkg.main. Technical problem : Error

Hi,

"Create Accounting" got error out and message is below in R12.1.3 upgrade and migration instance. Attached the error log. Any help is appreciated.

+---------------------------------------------------------------------------+Subledger Accounting: Version : 12.0.0Copyright (c) 1979, 1999, Oracle Corporation. All rights reserved.XLAACCUP module: Accounting Program+---------------------------------------------------------------------------+Current system time is 12-OCT-2011 11:36:47+---------------------------------------------------------------------------+**Starts**12-OCT-2011 11:36:47**Ends**12-OCT-2011 11:36:50An internal error occurred. Please inform your system administrator or support representative that:An internal error has occurred in the program xla_ap_acct_hooks_pkg.main. Technical problem : Error encountered in product API for extractAn internal error occurred. Please inform your system administrator or support representative that:An internal error has occurred in the program xla_ap_acct_hooks_pkg.main. Technical problem : Error encountered in product API for extract+---------------------------------------------------------------------------+Start of log messages from FND_FILE+---------------------------------------------------------------------------+12-OCT-2011 11:33:03 - Executing Unit Processor ...12-OCT-2011 11:33:03 - Initializing variables12-OCT-2011 11:33:03 -