Are you Divorced in 2019? If you are still married you can only file as Joint or MFS or Head of Household if you qualify. Not as Single.
If you used Turbo Tax last year you should start a brand new account for yourself and not transfer from last year. Online is only good for 1 return. But you can use the same email address for 5 accounts. How to start another return in the Online version
Start a new account. Removing a spouse is not recommended
Getting Divorced article
Video tips for Divorced couples
And see what AGI to use