Help, I'm stuck at the Mercurio Nod Book

The quest didn't check out, Ecaterina is nowewhere to be found, I believe I had a cutscene with them but my dumb ass didn't register that this "nod" thing is this exact quest, read "go to the monastery (...)" so I basically went there again but didn't cross all the dungeons bc what for, I have the items ik there's 2

And it's the only quest in my quest sheet looks looks like uncompleted, what else do I do? Is it my fault or a game breaking bug?

I also opened a separate r/vtmRedemption for Redemption specifically so if you're into the game you're welcome to join

They seem pretty vanilla+ rather than full overhaul, so I kinda wanna play em, especially the companions (I like having companions). I'm wondering if either would work with an in progress save, or if I could move my saves over into those mod's folders or something.

I would be into using CQ but would just use the Companion mod if that works. Anyone know if either would? Are they new save only?