Sorry Online is only for 2024 now. So you need to clear it out so you can use it for 2024. You can try to clear it
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-clear-and-start-over-in-turbotax-onli...
Then to finish 2023 you have to switch to the Desktop program. How to finish a return you started online,
https://ttlc.intuit.com/community/prior-year-return/help/how-do-i-finish-a-prior-year-return-that-i-...
