Hey there, you're probably on android? If you deleted the game before, it might have deleted all the saves as well. Otherwise they should be there, since I didn't change the name of the app. If you're on PC, the saves should be in %appdata%\RenPy\BetweenHumanity-1679746291
I didn't change the path, so they should work too.
Can you give more information? :)