hi, the wrong message as the following


Runtime Errors         EXPORT_INCONSISTENT_STRUCTURE
Date and Time          14.07.2007 07:11:52
Short dump has not been completely stored (too big)

 ShrtText
     Internal error: Invalid structure description.

 What happened?
     The current ABAP program had to be terminated because the
     ABAP processor detected an internal system error.
     The current ABAP program "SAPLCOBT" had to be terminated because the ABAP
     processor discovered an invalid system state.

 Error analysis
     When exporting the structure description, the structure
     components overlapped. The error occured in the
     description of the object "AFVGTAB_OLD".

 Trigger Location of Runtime Error
     Program                                 SAPLCOBT
     Include                                 LCOBTU64
     Row                                     274
     Module type                             (FUNCTION)
     Module Name                             CO_BT_ORDER_POST