Deductions & credits

I also received last year confirmation from IRS that they've updated my wife's ITIN to SSN for all previous tax records. I am ready to file taxes for 2020 and claim the missing stimulus money (1st and 2nd stimulus). There is a area in e-file software (turbotax) to enter amount received.

 

My questions is should I file taxes online or paper copy? When you file a paper copy you can attach supporting documents like confirmation mail received from IRS but I am not sure filing online. My spouse did not get the 2nd $600 stimulus payment this January even after confirmation from IRS last year that ITIN to SSN is complete. Please let me know your thoughts on this. Thanks.