Form 8606 non deductible

Hi,

I contributed non-deductible IRA in 2020 but did not specified as non-deductible then. I see form 8606 in my 2020 tax return but no basis was calculated. Is there a way I can correct this information now?  Can I correct it with Turbotax this year?  Turbotax just asked me to find the basis calculated from the past 8606 form, but since there was no info from last 8606 form, what should I do?

 

I made another non-deductible contribution in 2021 which I think I can add in Turbotax...