Screwing over the Alcaster quest

Well, I was doing the Alcaster Book of Ancient quest the other day, which involves a massive boring quest chain. I wasn't really paying attention while hopping up/down Orbis Tower, and I accidentally forfeited the quest during the 2nd part of the chain.

I thought I could go accept it again, but this blank box is stuck in my In Progress tab.

 Spoiler

I tried talking to Alcaster, Jake, & Elma, all who I needed to talk to during that part of the chain, & they all have normal dialogue not relating to the quest at all.
So does forfeiting a quest in the middle of a chain completely screw up the quest, or is there some way to fix it?

Did you try relogging? That fixes most of quest stuffs.