Buddycloud server error

gistfile1.txt

e@my-server: channels.my-server
[Wed, 08 Aug 2012 14:31:58 GMT] DEBUG [local/operations] operations.run: { iq: 
   { name: 'iq',
     parent: null,
     attrs: 
      { to: 'channels.my-server',
        id: 'sHXjv-4',
        from: 'twinkle@my-server/BC_TEST_CLIENT',
        type: 'set',
        xmlns: 'jabber:client',
        'xmlns:stream': 'http://etherx.jabber.org/streams' },
     children: [ '    ', [Object] ],
     reply: [Function],
     replyError: [Function] },
  sender: 'twinkle@my-server',
  fullSender: 'twinkle@my-server/BC_TEST_CLIENT',
  actor: 'twinkle@my-server',
  me: 'channels.my-server',
  pubsubEl: 
   { name: 'pubsub',
     parent: 
      { name: 'iq',
        parent: null,
        attrs: [Object],
        children: [Object],
        reply: [Function],
        replyError: [Function] },
     attrs: { xmlns: 'http://jabber.org/protocol/pubsub' },
     children: [ '        ', [Object], '    ' ] },
  rsm: {},
  publishEl: 
   { name: 'publish',
     parent: 
      { name: 'pubsub',
        parent: [Object],
        attrs: [Object],
        children: [Object] },
     attrs: { node: '/user/twinkle@my-server/posts' },
     children: [ '            ', [Object], '        ' ] },
  items: [ { el: [Object] } ],
  node: '/user/twinkle@my-server/posts',
  actorType: 'user' }
[Wed, 08 Aug 2012 14:3

n FROM affiliations WHERE node=$1 AND "user"=$2 ["/user/twinkle@my-server/posts","twinkle@my-server"]
[Wed, 08 Aug 2012 14:31:58 
[Wed, 08 Aug 2012 14:31:58 GMT] TRACE [local/model_postgres] query SELECT node FROM nodes WHERE node=$1 ["/user/twinkle@my-server/posts"]
[Wed, 08 Aug 2012 14:31:58 GMT] TRACE [local/model_postgres] query SELECT "key", "value" FROM node_config WHERE node=$1 ["/user/twinkle@my-server/posts"]
[Wed, 08 Aug 2012 14:31:58 GMT] ERROR [normalize] TypeError: Object                      has no method 'is'
    at /opt/buddycloud-server/lib/normalize.js:113:20
    at Array.some (native)
    at normalizeLink (/opt/buddycloud-server/lib/normalize.js:112:43)
    at normalizeEntry (/opt/buddycloud-server/lib/normalize.js:45:7)
    at exports.normalizeItem (/opt/buddycloud-server/lib/normalize.js:28:16)
    at Publish.privilegedTransaction (/opt/buddycloud-server/lib/local/operations.js:747:26)
    at async.iterator.fn (/opt/buddycloud-server/node_modules/async/lib/async.js:517:34)
    at async.waterfall.wrapIterator (/opt/buddycloud-server/node_modules/async/lib/async.js:441:34)
    at process.startup.processNextTick.process._tickCallback (node.js:244:9)
[Wed, 08 Aug 2012 14:31:58 GMT] WARN [local/operations] Transaction publish-node-items rollback: TypeError: Object                      has no method 'is'
[Wed, 08 Aug 2012 14:31:58 GMT] TRACE [local/model_postgres] query ROLLBACK []
[Wed, 08 Aug 2012 14:31:58 GMT] WARN [local/operations] Operation publish-node-items failed: TypeError: Object                      has no method 'is'
    at /opt/buddycloud-server/lib/normalize.js:113:20
    at Array.some (native)
    at normalizeLink (/opt/buddycloud-server/lib/normalize.js:112:43)
    at normalizeEntry (/opt/buddycloud-server/lib/normalize.js:45:7)
    at exports.normalizeItem (/opt/buddycloud-server/lib/normalize.js:28:16)
    at Publish.privilegedTransaction (/opt/buddycloud-server/lib/local/operations.js:747:26)
    at async.iterator.fn (/opt/buddycloud-server/node_modules/async/lib/async.js:517:34)
    at async.waterfall.wrapIterator (/opt/buddycloud-server/node_modules/async/lib/async.js:441:34)
    at process.startup.processNextTick.process._tickCallback (node.js:244:9)