AttributeError: 'NoneType' object has no attribute 'deleted'</b><br>
    </div>
    <div id="short_text_version" class="hidden-data">
    <textarea style="width: 100%" rows=20 cols=60>URL: http://galaxyp.msi.umn.edu/dataset/display_application?app_action=data&amp;user_id=5247f94ebfb23817&amp;app_name=protvis_mzml&amp;action_param=galaxy_f0e73fa532fde728.mzml&amp;link_name=ProtVis&amp;dataset_id=f0e73fa532fde728
File '/opt/galaxy/web/eggs/WebError-0.8a-py2.7.egg/weberror/evalexception/middleware.py', line 364 in respond
  app_iter = self.application(environ, detect_start_response)
File '/opt/galaxy/web/eggs/Paste-1.7.5.1-py2.7.egg/paste/recursive.py', line 84 in __call__
  return self.application(environ, start_response)
File '/opt/galaxy/web/lib/galaxy/web/framework/middleware/remoteuser.py', line 91 in __call__
  return self.app( environ, start_response )
File '/opt/galaxy/web/eggs/Paste-1.7.5.1-py2.7.egg/paste/httpexceptions.py', line 633 in __call__
  return self.application(environ, start_response)
File '/opt/galaxy/web/lib/galaxy/web/framework/base.py', line 132 in __call__
  return self.handle_request( environ, start_response )
File '/opt/galaxy/web/lib/galaxy/web/framework/base.py', line 159 in handle_request
  trans = self.transaction_factory( environ )
File '/opt/galaxy/web/lib/galaxy/web/framework/__init__.py', line 238 in &lt;lambda&gt;
  self.set_transaction_factory( lambda e: self.transaction_chooser( e, galaxy_app, session_cookie ) )
File '/opt/galaxy/web/lib/galaxy/web/framework/__init__.py', line 269 in transaction_chooser
  return GalaxyWebTransaction( environ, galaxy_app, self, session_cookie )
File '/opt/galaxy/web/lib/galaxy/web/framework/__init__.py', line 358 in __init__
  if self.app.config.use_remote_user and self.galaxy_session.user.deleted:
AttributeError: 'NoneType' object has no attribute 'deleted'