I know this is more of a SOA question, but I'm really close to TOB

In any case, I'm in chapter 6 now, and Bohdi has already taken my party member, now I've played through SOA before and I remember that when I did it before I ran into Bohdi's Crypt and went though it. However now all the entrances are blocked off, saying "This entrance has been intensionally caved it, odviously someone doesn't want you to enter here" or some such nonsense. What now? my journal is clean of all other unfinished quests, and I have absolutely no Idea what to do now. How do I get into Bohdi's Crypt now?