Ammended bills of previous years filled in 4a column

i had some bills for which i paid tax earlier in the same month/quarter only..

but failed to upload those bills in GSTR1 during those periods of JULY-MARCH 2017-2018

and when september 2018 was the last month to file those missed invoices i filled those missing bills in 4A column instead of 9A AMMENDED B2B INVOICES..

how do i rectify the problem ??

or is it that i dont have to make any changes if i have filed those missing invoices with correct dates of earlier tax periods..