Sorry you are too late to finish online. Online has closed for 2019. 2019 is now the prior year. You have to switch to the Desktop program.
How to finish a prior year online return
https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-finish-a-prior-year-return-that-i-...
Did you already pay for the Online version ? Ask support to give you the Download Desktop program.
Contact Customer Service
5am-5pm Pacific Time Monday -Friday
https://support.turbotax.intuit.com/contact/
What is the Turbo Tax phone number
https://ttlc.intuit.com/community/using-turbotax/help/what-is-the-turbotax-phone-number/00/25632
Or If you want to file for free you can fill out the forms by hand. Here are some basic forms…..
Here is the IRS 2019 Form 1040
https://www.irs.gov/pub/irs-pdf/f1040.pdf
or if you want bigger type use 1040SR for Seniors,
https://www.irs.gov/pub/irs-pdf/f1040s.pdf
And 2019 Instructions https://www.irs.gov/pub/irs-pdf/i1040gi.pdf
2019 Tax and EIC Tables https://www.irs.gov/pub/irs-pdf/i1040tt.pdf
Sch 1 : https://www.irs.gov/pub/irs-pdf/f1040s1.pdf
Sch 2 : https://www.irs.gov/pub/irs-pdf/f1040s2.pdf
Sch 3 : https://www.irs.gov/pub/irs-pdf/f1040s3.pdf
