Nostalrius Begins - Quality wow vanilla realm (1.12)

Prior to the recent crash, I turned in 3 quests; Crushridge Bounty, Noble Deaths, and Dark Council. I got the experience which was like 12k. All these quests require items for turn it. After the roll back from the crash, my experience disappeared, the quest need to be turned again, but the items for the quests are missing. I really don't want to farm the same items again. Please help me.

Small update, I tried to re-do the quests, but the items don't drop anymore.