Oh I literally just got the game over screen, I guess because I didn't get enough acorns in time, but it looks like it's bugged because I can't click on the main menu or credits button. I honestly didn't realize it was going to happen, so perhaps a visible day counter to let you know how long you have would also help.
Plus, just a nitpick, I feel like you should be able to get small amounts of acorns by doing miscellaneous things, maybe selling excess things you pick up, or just finding random ones while walking, because theoretically, could I not softlock myself out of winning? Since there is only a finite amount of ways of getting them through quests, and multiple ways to spend them. Though I might be wrong on that front.