gstr 1

i was registered in gst firm named rssfootwear ,and invoice were also issued from s. no. 1 to 4.
later i get amended firms name - vanshika footwear
now i have issued invoices again started from s. no. 1 to 4
in the same financial year 18-19
now gstr 1 is not accepting the same invoice s. no.
showing " these will be added after validation"
please guide me properly