Thank you so much, you really saved my life! But I have an issue with the quests in the game except for Anna’s quest. There are many quests listed, but I can’t progress in any of them. I do what the quest asks and go to the locations, but the quests don’t advance. How can I fix this? Also, thanks again for explaining how to solve the heart problem in Anna’s quest
Since the game isn't finished yet, many quests aren't available. You can ignore the in-game notepad. Here's a guide for your reference.
https://docs.google.com/document/u/0/d/1LkXWll0_8kVL23hHWWySoRwKL_4dyluPHeLQsnhv...
Well, it's strange if you can't complete any mision. But some missions require Anna's progress even if it's not specified. So that could be the problem, or you might be missing something else. Stuck missions are rare, unless you're bugging the game with Unity-injected menus. Upload Anna's progress and try again, and it might fix it.