NON-TRANSMISSION OF INVOICES DUE TO NEGATIVE BALANCE

Dear Sir,
Please anyone tell me about my query:-
wrong entry made by gstr-3b and gstr-1 in the year of 2017.
supply made in nepal with payment of tax of rs. 4,500 taxable value and igst amount of rs. 810 and hence total invoice value is rs. 5,310.
my question is that in i have filed gstr-3b without entering the amount in zero rated column but entered in outward taxable supply column.
i have also filed gstr-1 but this invoice entered by me in the column of export invoices with payment of tax column.
By this when i file any gst return the mail comes icegate negative balance from the year of 2017 to uptill now.
what will i do.
please solve my problem
thanks in advance.