Redmine

When enabling wiki for a particular project it responds with an internal error.

In the production log file i can see:

NoMethodError (You have a nil object when you didn't expect it!
You might have expected an instance of Array.
The error occurred while evaluating nil.include?):
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active_record/dirty.rb:126:in `write_attribute'
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active_record/attribute_methods.rb:211:in `text='
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active_record/associations/association_proxy.rb:173:in `send'
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active_record/associations/association_proxy.rb:173:in `method_missing'
/app/controllers/wiki_controller.rb:67:in `edit'
/app/controllers/wiki_controller.rb:35:in `index'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:1166:in `send'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:1166:in `perform_action_without_filters'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/filters.rb:579:in `call_filters'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/filters.rb:572:in `perform_action_without_benchmark'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/usr/lib/ruby/1.8/benchmark.rb:293:in `measure'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/rescue.rb:201:in `perform_action_without_caching'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/caching/sql_cache.rb:13:in `passenger_orig_perform_action'
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active_record/connection_adapters/abstract/query_cache.rb:33:in `cache'
/usr/lib/ruby/gems/1.8/gems/activerecord-2.1.2/lib/active_record/query_cache.rb:8:in `cache'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/caching/sql_cache.rb:12:in `passenger_orig_perform_action'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/railz/request_handler.rb:53:in `perform_action'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:529:in `send'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:529:in `process_without_filters'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/filters.rb:568:in `process_without_session_management_support'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/session_management.rb:130:in `process'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/base.rb:389:in `process'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:149:in `handle_request'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:107:in `dispatch'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:104:in `synchronize'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:104:in `dispatch'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:120:in `dispatch_cgi'
/usr/lib/ruby/gems/1.8/gems/actionpack-2.1.2/lib/action_controller/dispatcher.rb:35:in `dispatch'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/railz/request_handler.rb:38:in `process_request'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_request_handler.rb:163:in `main_loop'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/railz/application_spawner.rb:307:in `start_request_handler'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/railz/application_spawner.rb:276:in `handle_spawn_application'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/utils.rb:165:in `safe_fork'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/utils.rb:163:in `fork'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/utils.rb:163:in `safe_fork'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/railz/application_spawner.rb:274:in `handle_spawn_application'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/utils.rb:165:in `safe_fork'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/utils.rb:163:in `fork'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/utils.rb:163:in `safe_fork'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/railz/application_spawner.rb:273:in `handle_spawn_application'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:317:in `__send__'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:317:in `main_loop'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:168:in `start_synchronously'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:135:in `start'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:112:in `fork'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:112:in `start'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/railz/application_spawner.rb:177:in `start'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/railz/framework_spawner.rb:270:in `handle_spawn_application'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/railz/framework_spawner.rb:263:in `synchronize'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/railz/framework_spawner.rb:263:in `handle_spawn_application'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:317:in `__send__'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:317:in `main_loop'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:168:in `start_synchronously'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:135:in `start'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:112:in `fork'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:112:in `start'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/railz/framework_spawner.rb:87:in `start'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/spawn_manager.rb:218:in `spawn_rails_application'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/spawn_manager.rb:213:in `synchronize'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/spawn_manager.rb:213:in `spawn_rails_application'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/spawn_manager.rb:122:in `spawn_application'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/spawn_manager.rb:247:in `handle_spawn_application'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:317:in `__send__'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:317:in `main_loop'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/lib/passenger/abstract_server.rb:168:in `start_synchronously'
/usr/lib/ruby/gems/1.8/gems/passenger-2.0.3/bin/passenger-spawn-server:46

Rendering ./public/500.html (500 Internal Server Error)