Error on Standard Invoice Entry form with Form Request.

Hello, I am trying to create Invoice using Form Request but keep running into an issue. Form request was created using process recorder as following:-
1) Open P03B2002 ZJDE0001 and click Add button → 2) Standard Invoice Entry P03B11 W03B11A ZJDE0001: - Enter Customer, Company, Invoice Date, and G/L Date on Form then in grid Gross Amount, Remark, Tax Area, and Tax Expl. Finally click OK. 3) Then G/L Distribution P03B11 W03B11C ZJDE0001: - Enter Account Number, Sub Type and Sub-ledger in grid. 4) Close 5) Close.

I am attaching extract and error, could someone help me, this works perfectly with same data manually, but Form Request fails. The final goal is to create multiple invoices using CSV as input.