For some reason when i try to gift John the advanced theory of magic it tells me that:
Aura has not met the prerequisites for this book.
I have gifted John the Basic theory of magic so he should be able to read it. After going in and out of the adventurer guild, it says:
has not met the prerequisites for this book.
And if i try to gift it the following day:
Duelist Ray has not met the prerequisites for this book.
At a certain point the game would crash for me when i tried to gift John the Advanced theory of magic