All saves from v0.2 going forward are compatible. I'm not sure why yours a gone, but it would have to take some effort on your end to break them.
Viewing post in Harem Hotel (18+) NEW UPDATE! comments
Yeah. It might be because i trasnfered files from V14 off my laptop to a Seagate and then to my new desktop. It might have corrupted them. I do want to mention i got a rollback error the moment i pressed continue to start the game, but i dont think thats the cause. Well, ill just speed through it lol