Hi Suman,
You are running New GL and the "classic" GL DataSources have become obsolete. You have to switch over to 0FI_GL_10 and 0FI_GL_14 for extracting the Leading Ledger.
If you also have Parallel Ledgers, then you have to generate additional DataSources 3FI_GL_xx_TT and 3FI_GL_xx_SI (where xx stands for ledger).
Best regards,
Sander