The missing, previous events of Citrinne might be before the time skip events: https://renryuu.miraheze.org/wiki/Citrinne
So uhh there no way to fix it or i have to do something before i dont know🙏
You might've misunderstood my reply. I don't think it's a bug that needs to be fixed. You need to check what part of Citrinne's events you haven't played yet and do that content to unlock the later events.
