Error in db:migrate_plugins

[bsides]

I'm getting the following error after running rake db:migrate_plugins RAILS_ENV=production. I don't know if it's a problem related to redmine_digest or not but if you could help I'd really appreciate it. My server is a Ubuntu 11 VPS with LAMP and Redmine already running (http://pro.bsides.co).

Thank you!

(in /usr/share/redmine)
rake aborted!
undefined method safe_attributes' for #<Class:0xb6e1c178> /usr/lib/ruby/1.8/active_record/base.rb:1959:inmethod_missing'
/usr/share/redmine/vendor/plugins/redmine_digest/lib/redmine_digest/user_patch.rb:15:
in included' /usr/share/redmine/vendor/plugins/redmine_digest/lib/redmine_digest/user_patch.rb:10: inclass_eval'
/usr/share/redmine/vendor/plugins/redmine_digest/lib/redmine_digest/user_patch.rb:10:
in included' /usr/share/redmine/vendor/plugins/redmine_digest/init.rb:17:ininclude'
/usr/share/redmine/vendor/plugins/redmine_digest/init.rb:17:in send' /usr/share/redmine/vendor/plugins/redmine_digest/init.rb:17:inevaluate_init_rb'
/usr/lib/ruby/1.8/active_support/callbacks.rb:182:in call' /usr/lib/ruby/1.8/active_support/callbacks.rb:182:inevaluate_method'
/usr/lib/ruby/1.8/active_support/callbacks.rb:166:in call' /usr/lib/ruby/1.8/active_support/callbacks.rb:90:inrun'
/usr/lib/ruby/1.8/active_support/callbacks.rb:90:in each' /usr/lib/ruby/1.8/active_support/callbacks.rb:90:insend'
/usr/lib/ruby/1.8/active_support/callbacks.rb:90:in run' /usr/lib/ruby/1.8/active_support/callbacks.rb:276:inrun_callbacks'
/usr/lib/ruby/1.8/action_controller/dispatcher.rb:51:in send' /usr/lib/ruby/1.8/action_controller/dispatcher.rb:51:inrun_prepare_callbacks'
/usr/share/redmine/config/../vendor/rails/railties/lib/initializer.rb:631:in prepare _dispatcher' /usr/share/redmine/config/../vendor/rails/railties/lib/initializer.rb:185:inprocess
'
/usr/share/redmine/config/../vendor/rails/railties/lib/initializer.rb:113:in send' /usr/share/redmine/config/../vendor/rails/railties/lib/initializer.rb:113:inrun'
/usr/share/redmine/config/environment.rb:50
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in gem_original_require' /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:inrequire'
/usr/lib/ruby/1.8/active_support/dependencies.rb:156:in require' /usr/lib/ruby/1.8/active_support/dependencies.rb:521:innew_constants_in'
/usr/lib/ruby/1.8/active_support/dependencies.rb:156:in require' /usr/share/redmine/vendor/plugins/redmine_digest/lib/tasks/digest.rake:31 /usr/lib/ruby/1.8/active_support/dependencies.rb:145:inload_without_new_constant_marking'
/usr/lib/ruby/1.8/active_support/dependencies.rb:145:in load' /usr/lib/ruby/1.8/active_support/dependencies.rb:521:innew_constants_in'
/usr/lib/ruby/1.8/active_support/dependencies.rb:145:in load' /usr/share/redmine/vendor/rails/railties/lib/tasks/rails.rb:8 /usr/share/redmine/vendor/rails/railties/lib/tasks/rails.rb:8:ineach'
/usr/share/redmine/vendor/rails/railties/lib/tasks/rails.rb:8
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in gem_original_require' /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:inrequire'
/usr/share/redmine/Rakefile:10
/usr/lib/ruby/1.8/rake.rb:2383:in load' /usr/lib/ruby/1.8/rake.rb:2383:inraw_load_rakefile'
/usr/lib/ruby/1.8/rake.rb:2017:in load_rakefile' /usr/lib/ruby/1.8/rake.rb:2068:instandard_exception_handling'
/usr/lib/ruby/1.8/rake.rb:2016:in load_rakefile' /usr/lib/ruby/1.8/rake.rb:2000:inrun'
/usr/lib/ruby/1.8/rake.rb:2068:in standard_exception_handling' /usr/lib/ruby/1.8/rake.rb:1998:inrun'
/usr/bin/rake:28

[JIMPomat]

I have the same problem

My Server is a Debian Linux 6.0...redmine works well without this plugin

rake aborted!
undefined method safe_attributes' for #<Class:0x7fb047d04d38> /var/lib/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:1959:inmethod_missing'
/home/REDMINE/redmine/vendor/plugins/redmine_digest/lib/redmine_digest/user_patch.rb:15:in included' /home/REDMINE/redmine/vendor/plugins/redmine_digest/lib/redmine_digest/user_patch.rb:10:inclass_eval'
/home/REDMINE/redmine/vendor/plugins/redmine_digest/lib/redmine_digest/user_patch.rb:10:in included' /home/REDMINE/redmine/vendor/plugins/redmine_digest/init.rb:17:ininclude'
/home/REDMINE/redmine/vendor/plugins/redmine_digest/init.rb:17:in send' /home/REDMINE/redmine/vendor/plugins/redmine_digest/init.rb:17:inevaluate_init_rb'
/var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/callbacks.rb:182:in call' /var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/callbacks.rb:182:inevaluate_method'
/var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/callbacks.rb:166:in call' /var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/callbacks.rb:90:inrun'
/var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/callbacks.rb:90:in each' /var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/callbacks.rb:90:insend'
/var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/callbacks.rb:90:in run' /var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/callbacks.rb:276:inrun_callbacks'
/var/lib/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:51:in send' /var/lib/gems/1.8/gems/actionpack-2.3.5/lib/action_controller/dispatcher.rb:51:inrun_prepare_callbacks'
/var/lib/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:631:in prepare_dispatcher' /var/lib/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:185:inprocess'
/var/lib/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:in send' /var/lib/gems/1.8/gems/rails-2.3.5/lib/initializer.rb:113:inrun'
/home/REDMINE/redmine/config/environment.rb:23
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in gem_original_require' /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:inrequire'
/var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in require' /var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:innew_constants_in'
/var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:156:in require' /home/REDMINE/redmine/vendor/plugins/redmine_digest/lib/tasks/digest.rake:31 /var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:inload_without_new_constant_marking'
/var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in load' /var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:521:innew_constants_in'
/var/lib/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:145:in load' /var/lib/gems/1.8/gems/rails-2.3.5/lib/tasks/rails.rb:8 /var/lib/gems/1.8/gems/rails-2.3.5/lib/tasks/rails.rb:8:ineach'
/var/lib/gems/1.8/gems/rails-2.3.5/lib/tasks/rails.rb:8
/usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in gem_original_require' /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:inrequire'
/home/REDMINE/redmine/Rakefile:10
/usr/lib/ruby/1.8/rake.rb:2387:in load' /usr/lib/ruby/1.8/rake.rb:2387:inraw_load_rakefile'
/usr/lib/ruby/1.8/rake.rb:2021:in load_rakefile' /usr/lib/ruby/1.8/rake.rb:2072:instandard_exception_handling'
/usr/lib/ruby/1.8/rake.rb:2020:in load_rakefile' /usr/lib/ruby/1.8/rake.rb:2004:inrun'
/usr/lib/ruby/1.8/rake.rb:2072:in standard_exception_handling' /usr/lib/ruby/1.8/rake.rb:2002:inrun'
/usr/bin/rake:28

Thanks for your help!