Help with Fetch next

We have customized an UBE in E1 9.1 based on standard view V03B11P and it is a copy of report R03B4201C with some modifications.
I am not sure why the following statement (highlighted) is generating error:

0253 VA rpt_LineExtensionCode_EXTL = ""

0254 VA rpt_JournalEntryLineNo_JELN = "1"

0255 F0911.Select

        BC Document Company (F03B11)(KCO) =  TK Document Company

        BC Document Type (F03B11)(DCT) =  TK Document Type

        BC Document (Voucher, Invoice, etc.) (F03B11)(DOC) =  TK Document (Voucher, Invoice, etc.)

        BC Date - For G/L (and Voucher) - Julian (F03B11)(DGJ) =  TK Date - For G/L (and Voucher) - Julian