I need help with the new expansion, it's not the first time I've played the game and I know how to advance in the story, but my problem is that more than 37 days have passed in the game, I've done everything with most people and I can't get Anna's hearts to go up, I don't know if it's a bug or something, what do you recommend?

Me too , the subscriber is hard to up the amount

Have you guys been investing in skills as well as better cameras? Eventually you'll earn lots of followers/subs/fans this way. If you need more money, just go to Work everyday. Be sure to buy an Angel mini from the Comic Store as that's overpowered and gets through the Work minigame rather quickly.