Did you try to bring old saves? The game you can download here doesn't include a save folder. The saves from before 0.10 don't work in this phase (0.10, 0.11, 0.12). When you start a new game and then save from the pause menu it will create the save folder.
I don't have any older saves as this was my first time downloading it. And as for saving from the pause menu; when I started the game, I went through the story and naming and I immediately went the the save option in the menu and it gives me the choice of which number file id want to save it from, but when I click any number save file an "error" sound effect plays and it doesn't do anything.