Clarification to be filed for Revocation of cancellation

cancellation of GST registration suo motu wef 31.03.2021 because of non filing of returns from April'21 to October'21, Officer has issued notice seeking clarification asking me to upload draft GSTR 3B of all pending returns and challan copy of paid taxes, but the portal has deactivated the returns for FY 2021-22. How should I upload draft 3B as the portal is not allowing me to enter the details for FY 2021-22...