Yup the walktrough is messed up
You basicly need to do the Money Money Money quest first pick up the paper near the fast travel thing in the castle
Before you do any other quest
Otherwise that quest wont be able to complete and u cant progress after a certain while
So for all new players just after the first mission called wake up my lord
Just inmediatly find that letter in that fast travel room on the left side chamber and pick it up afterwards u can basicly go and do what ever quest u want