Well, given you stated you levelled CNJ to 50 and gained WHM in 1.0, then it's clear what has happened is when you deleted your character in ARR, and reactivated it a significant time later, SE seems to have defaulted to restoring your character from the 1.0 save state rather than the last save state for your character when you deleted it. Whether the ARR save state still exists or not I can't say as I have no idea how SE handles archiving character data - although data corruption or bugs might have caused this action. Either way, as others have said, try seeing if you can reach a Senior Game Master and see if they can try and find out what has happened.