Missed Gstr10 filing!

Hi there i had a GST number which got cancelled in december 2024 but i did not filed that GSTR 10 because i was not aware of and now it asking a hefty amount of late fees. I took that gst number back in 2023 to save some gst money on my computer purchases but i never got them to enjoy because i never made any sell turnover on that business. I already paid around 5000 on monthly nill gstr returns. I dont have any money to pay them now because i am ill from previous year for which i have every bit of proof. Please help me.