Gstr-3b

I have submitted wrongly filed GSTR 3B. Actally I purchased goods (3Invoices) and get Input Tax credit. But I wrongly mentioned the details as reverse charge credit. So filling time GSTR-3B displays liability. Then i made payment by cash to bank. Now i filled GSTR-1, the GSTR-2 display's only 2 invoices details. Yet I item pending. How can I correct the GSTR-3B details?.