Item not found error while using XEP-0084 User Avatar to send avatar data to node "urn:xmpp:avatar:data"

Im creating a chat application for android mobile using smack.But I’m getting “item not found” error when i try to send avatar data to “urn:xmpp:avatar:data” node. There is no such node in ofPubsubNode column in my openfire database.

Please help me. I’m stuck here for 7 days.