Hi rohi dass,
I just got the same error...
It is happening because maybe you had inserted a space instead a value in:
SPRO->Financial Accounting (New)->General Ledger Accounting (New)->Business Transactions->Document Splitting->Extended Document Splitting->Define Document Splitting Rule.
It will generate an error into include LGLT2F07.
The system will try to change the code but the field is missing. E.g:
IF I_GL_FIELDS ISINITIAL.
IFNOT i_accit-???ISINITIAL.
E_SPLIT+000000(000000) = I_ACCIT-???.
ENDIF.
ENDIF.