Redmine

After run command: cd ~/http && rake generate_session_store && RAILS_ENV=production rake db:migrate && RAILS_ENV=production rake redmine:load_default_data
(in /home/virtwww/w_hammerofredmine_1effbb7e/http)
(in /home/virtwww/w_hammerofredmine_1effbb7e/http)
SetDocAndFilesNotifications: migrating ==================================
rake aborted!
An error has occurred, all later migrations canceled:

NULL pointer given

(See full trace by running task with --trace)

In /log I see this:

Processing WelcomeController#index (for 81.177.33.4 at 2012-01-18 14:04:56) [GET
Parameters: {"action"=>"index", "controller"=>"welcome"}

ArgumentError (NULL pointer given):
(eval):3:in `each_hash'
(eval):3:in `all_hashes'
app/models/user.rb:513:in `anonymous'
app/models/user.rb:507:in `current'
app/controllers/application_controller.rb:104:in `check_if_login_required'
config/initializers/mongrel.rb:62:in `dispatch_cgi'

Rendering /home/virtwww/w_hammerofredmine_1effbb7e/http/public/500.html (500 Int

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