Are you on Windows or Mac? For Windows see if you need any Windows updates. Try a couple times, a Windows update might be stuck. Did you try doing the manual update?
Troubleshooting update issues on Windows
https://ttlc.intuit.com/community/troubleshooting/help/troubleshoot-turbotax-for-windows-updating-is...
If your program says it's up to date or you can't update it then do the Manual Update for Windows
https://ttlc.intuit.com/community/updating/help/manually-update-turbotax-for-windows-software-basic-...
