While posting the journals in Gl not getting posted. shows mapping is disabled or invalid

Hi,

While i am doing posting in GL the journal has not getting posted it shows below error.

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

General Ledger: Version : 12.0.0

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

GLPPOSS module: Posting: Single Ledger

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

Current system time is 28-JUN-2015 06:34:29

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

>> glpmai() 28-JUN-2015 06:34:29

SHRD0176: GLPPOS started in debug mode...

PPOS0003: *** Posting Process Started ***

PPOS0004: All phases to posting will be detailed in this log.

PPOS0219: glpmai() - Your Posting Run ID is 25392

>> glucmt() 28-JUN-2015 06:34:29

<< glucmt() 28-JUN-2015 06:34:29

>> glpini() 28-JUN-2015 06:34:29

SHRD0180: glpini() - Performing action >> check_batches_exist...

SHRD0180: glpini() - Performing action >> check_single_ledger...

SHRD0180: glpini() - Performing action >> get_bal_seg_name...