Deleted Queue

ASTERISK: 1.4.21.2
FREEPBX: 2.5.1.0

We have a user that deleted a very important queue in the GUI. I went to readd it and got the message FATAL ERROR
DB Error: already exists

error adding to queues_details table

Is there a way to readd that queue by reading the queues_details file? I don’t have a backup for this client, and I would hate to have to readd the queue if it’s still present in some form.