Preceding Month Bulk E Invoicing

Hi, We are eCommerce operator and We have done the B2B Sale through our eportal.But as per the rule we have not prepared the Einvoices of our sale Invoice for the month of Oct 22 to Feb 22. In that situation what option we have remains to escape from Govt panalty.

Further Can we prepare E Invoice in the current date for the previous month sale Invoices?

Secondly Is there any option to cut the Bulk Einvoicing in one go?

Please Help in above.