You are posting from Self-Employed. If you had self-employment income you cannot use the Free Edition. If you qualify, you could use the other free version called Free File.
WHY DO I HAVE TO PAY? I WANT THE FREE EDITION
The information that you can enter in Free Edition is pretty limited now. Thanks to the new tax laws that began for 2018 returns, there are no more simple Form 1040EZ or 1040A's. Everything goes on a Form 1040 that has three extra "schedules" with it, and if you need any of those schedules, you are not able to use the Free Edition. Using the standard deduction instead of itemizing does NOT mean you will not need any of those schedules.
https://www.irs.gov/forms-pubs/about-form-1040
If you qualify to use it, there is another full-featured free version of the software:
Try Free File:
You qualify if your income was $36,000 or less, or $69,000 or less if active duty military, or if you qualify for Earned Income Credit
https://ttlc.intuit.com/questions/1900583-what-is-turbotax-free-file-program
If you switch to Free File you must create a new account and new user ID.
https://ttlc.intuit.com/questions/4511011-what-happened-to-the-1040a-and-1040ez
Note: If you do not qualify to use Free File then you will have to upgrade to Deluxe or higher in the paid versions of the software.