Redmine

Ubuntu 10.04 redmine + apache2 + Passenger

it being error after i install backlogs plugin :

Internal error

An error occurred on the page you were trying to access.
If you continue to experience problems please contact your Redmine administrator for assistance.

If you are the Redmine administrator, check your log files for details about the error.

The following was shown in the production.log :

Processing WelcomeController#index (for 192.168.2.110 at 2012-03-14 19:13:23) [GET]
Parameters: {"controller"=>"welcome", "action"=>"index"}
Rendering template within layouts/base
Rendering welcome/index

ActionView::TemplateError (Unable to load settings) on line #20 of app/views/layouts/base.html.erb:
17: body {behavior: url(<%= stylesheet_path "csshover.htc" >);}
18: </style>
19: <![endif]-->
20: <= call_hook :view_layouts_base_html_head >
21: <!-- page specific tags -->
22: <= yield :header_tags -%>
23: </head>

vendor/plugins/redmine_backlogs/app/models/rb_task.rb:7:in `tracker'
lib/redmine/hook.rb:63:in `send'
lib/redmine/hook.rb:63:in `call_hook'
lib/redmine/hook.rb:63:in `each'
lib/redmine/hook.rb:63:in `call_hook'
lib/redmine/hook.rb:60:in `tap'
lib/redmine/hook.rb:60:in `call_hook'
lib/redmine/hook.rb:144:in `call_hook'
app/views/layouts/base.html.erb:20
/usr/lib/ruby/vendor_ruby/action_view/renderable.rb:34:in `send'
/usr/lib/ruby/vendor_ruby/action_view/renderable.rb:34:in `render'
/usr/lib/ruby/vendor_ruby/action_view/base.rb:306:in `with_template'
/usr/lib/ruby/vendor_ruby/action_view/renderable.rb:30:in `render'
/usr/lib/ruby/vendor_ruby/action_view/template.rb:205:in `render_template'
/usr/lib/ruby/vendor_ruby/action_view/base.rb:265:in `render'
/usr/lib/ruby/vendor_ruby/action_view/base.rb:352:in `_render_with_layout'
/usr/lib/ruby/vendor_ruby/action_view/base.rb:262:in `render'
/usr/lib/ruby/vendor_ruby/action_controller/base.rb:1252:in `render_for_file'
/usr/lib/ruby/vendor_ruby/action_controller/base.rb:936:in `render_without_benchmark'
/usr/lib/ruby/vendor_ruby/action_controller/benchmarking.rb:51:in `render'
/usr/lib/ruby/vendor_ruby/action_controller/benchmarking.rb:51:in `render'
/usr/lib/ruby/vendor_ruby/action_controller/base.rb:1328:in `default_render'
/usr/lib/ruby/vendor_ruby/action_controller/base.rb:1334:in `perform_action_without_filters'
/usr/lib/ruby/vendor_ruby/action_controller/filters.rb:617:in `call_filters'
/usr/lib/ruby/vendor_ruby/action_controller/filters.rb:638:in `run_before_filters'
/usr/lib/ruby/vendor_ruby/action_controller/filters.rb:189:in `call'
/usr/lib/ruby/vendor_ruby/action_controller/filters.rb:189:in `call'
/usr/lib/ruby/vendor_ruby/action_controller/filters.rb:635:in `run_before_filters'
/usr/lib/ruby/vendor_ruby/action_controller/filters.rb:615:in `call_filters'
/usr/lib/ruby/vendor_ruby/action_controller/filters.rb:610:in `perform_action_without_benchmark'
/usr/lib/ruby/vendor_ruby/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/usr/lib/ruby/vendor_ruby/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
/usr/lib/ruby/vendor_ruby/action_controller/rescue.rb:160:in `perform_action_without_flash'
/usr/lib/ruby/vendor_ruby/action_controller/flash.rb:151:in `perform_action'
/usr/lib/ruby/vendor_ruby/action_controller/base.rb:532:in `send'
/usr/lib/ruby/vendor_ruby/action_controller/base.rb:532:in `process_without_filters'
/usr/lib/ruby/vendor_ruby/action_controller/filters.rb:606:in `process'
/usr/lib/ruby/vendor_ruby/action_controller/base.rb:391:in `process'
/usr/lib/ruby/vendor_ruby/action_controller/base.rb:386:in `call'
/usr/lib/ruby/vendor_ruby/action_controller/routing/route_set.rb:438:in `call'
/usr/lib/ruby/vendor_ruby/action_controller/dispatcher.rb:87:in `dispatch'
/usr/lib/ruby/vendor_ruby/action_controller/dispatcher.rb:121:in `_call'
/usr/lib/ruby/vendor_ruby/action_controller/dispatcher.rb:130:in `build_middleware_stack'
/usr/lib/ruby/vendor_ruby/active_record/query_cache.rb:29:in `call'
/usr/lib/ruby/vendor_ruby/active_record/query_cache.rb:29:in `call'
/usr/lib/ruby/vendor_ruby/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
/usr/lib/ruby/vendor_ruby/active_record/query_cache.rb:9:in `cache'
/usr/lib/ruby/vendor_ruby/active_record/query_cache.rb:28:in `call'
/usr/lib/ruby/vendor_ruby/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
/usr/lib/ruby/vendor_ruby/action_controller/string_coercion.rb:25:in `call'
/usr/lib/ruby/1.8/rack/head.rb:9:in `call'
/usr/lib/ruby/1.8/rack/methodoverride.rb:24:in `call'
/usr/lib/ruby/vendor_ruby/action_controller/params_parser.rb:15:in `call'
/usr/lib/ruby/vendor_ruby/action_controller/session/cookie_store.rb:99:in `call'
/usr/lib/ruby/vendor_ruby/action_controller/failsafe.rb:26:in `call'
/usr/lib/ruby/1.8/rack/lock.rb:11:in `call'
/usr/lib/ruby/1.8/rack/lock.rb:11:in `synchronize'
/usr/lib/ruby/1.8/rack/lock.rb:11:in `call'
/usr/lib/ruby/vendor_ruby/action_controller/dispatcher.rb:106:in `call'
/usr/lib/ruby/1.8/phusion_passenger/rack/request_handler.rb:95:in `process_request'
/usr/lib/ruby/1.8/phusion_passenger/abstract_request_handler.rb:207:in `main_loop'
/usr/lib/ruby/1.8/phusion_passenger/railz/application_spawner.rb:374:in `start_request_handler'
/usr/lib/ruby/1.8/phusion_passenger/railz/application_spawner.rb:332:in `handle_spawn_application'
/usr/lib/ruby/1.8/phusion_passenger/utils.rb:184:in `safe_fork'
/usr/lib/ruby/1.8/phusion_passenger/railz/application_spawner.rb:330:in `handle_spawn_application'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:352:in `__send__'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:352:in `main_loop'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:196:in `start_synchronously'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:163:in `start'
/usr/lib/ruby/1.8/phusion_passenger/railz/application_spawner.rb:209:in `start'
/usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:262:in `spawn_rails_application'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server_collection.rb:126:in `lookup_or_add'
/usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:256:in `spawn_rails_application'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server_collection.rb:80:in `synchronize'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
/usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:255:in `spawn_rails_application'
/usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:154:in `spawn_application'
/usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:287:in `handle_spawn_application'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:352:in `__send__'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:352:in `main_loop'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:196:in `start_synchronously'
/usr/lib/phusion_passenger/passenger-spawn-server:61