Redmine

Dear team,

I work for test app in redmine and when update spent time defined for one issue my redmine crashes (see detail about this in attached image), then I see this error in production.log:

Processing IssuesController#index (for 182.111.XXX.89 at 2012-06-15 14:58:33) [GET]
Parameters: {"project_id"=>"prueba1", "action"=>"index", "controller"=>"issues"}
Rendering template within layouts/base
Rendering issues/index
Completed in 558ms (View: 380, DB: 153) | 200 OK [http://XXX.XXX.XX.XXX/projects/prueba1/issues]

Processing ContextMenusController#issues (for 182.111.XXX.89 at 2012-06-15 14:58:43) [GET]
Parameters: {"action"=>"issues", "controller"=>"context_menus", "back_url"=>"/projects/prueba1/issues", "ids"=>["41"], "authenticity_token"=>"IXy8r0ylrZFcldCBoWkT5N+AIJ6ymcKtHek5ssXLy7I="}
Rendering context_menus/issues
Completed in 38ms (View: 25, DB: 4) | 200 OK [http://XXX.XXX.XX.XXX/issues/context_menu?authenticity_token=IXylrZFcld7I%3D&back_url=%2Fprojects%2Fprueba1%2Fissues&ids%5B%5D=41]

Processing TimelogController#new (for 182.111.XXX.89 at 2012-06-15 14:58:54) [GET]
Parameters: {"issue_id"=>"41", "action"=>"new", "controller"=>"timelog"}
Rendering template within layouts/base
Rendering timelog/edit
Completed in 28ms (View: 17, DB: 6) | 200 OK [http://XXX.XXX.XX.XXX/issues/41/time_entries/new]

Processing TimelogController#create (for 182.111.XX.89 at 2012-06-15 14:59:12) [POST]
Parameters: {"project_id"=>"prueba1", "commit"=>"Save", "action"=>"create", "controller"=>"timelog", "time_entry"=>{"issue_id"=>"41", "comments"=>"Continuidad con la tarea asignada", "activity_id"=>"11", "hours"=>"22", "spent_on"=>"2012-06-15"}, "back_url"=>"http%3A%2F%2FXXX.XXX.XX.XXX%2Fprojects%2Fprueba1%2Fissues", "authenticity_token"=>"IXy8r0ylrZFcldCBoWkT5N+AIek5ssXLy7I="}

NoMethodError (undefined method `group_by' for nil:NilClass):
app/controllers/timelog_controller.rb:121:in `create'
passenger (3.0.11) lib/phusion_passenger/rack/request_handler.rb:96:in `process_request'
passenger (3.0.11) lib/phusion_passenger/abstract_request_handler.rb:513:in `accept_and_process_next_request'
passenger (3.0.11) lib/phusion_passenger/abstract_request_handler.rb:274:in `main_loop'
passenger (3.0.11) lib/phusion_passenger/classic_rails/application_spawner.rb:321:in `start_request_handler'
passenger (3.0.11) lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `send'
passenger (3.0.11) lib/phusion_passenger/classic_rails/application_spawner.rb:275:in `handle_spawn_application'
passenger (3.0.11) lib/phusion_passenger/utils.rb:479:in `safe_fork'
passenger (3.0.11) lib/phusion_passenger/classic_rails/application_spawner.rb:270:in `handle_spawn_application'
passenger (3.0.11) lib/phusion_passenger/abstract_server.rb:357:in `__send__'
passenger (3.0.11) lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
passenger (3.0.11) lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
passenger (3.0.11) lib/phusion_passenger/abstract_server.rb:180:in `start'
passenger (3.0.11) lib/phusion_passenger/classic_rails/application_spawner.rb:149:in `start'
passenger (3.0.11) lib/phusion_passenger/spawn_manager.rb:219:in `spawn_rails_application'
passenger (3.0.11) lib/phusion_passenger/abstract_server_collection.rb:132:in `lookup_or_add'
passenger (3.0.11) lib/phusion_passenger/spawn_manager.rb:214:in `spawn_rails_application'
passenger (3.0.11) lib/phusion_passenger/abstract_server_collection.rb:82:in `synchronize'
passenger (3.0.11) lib/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
passenger (3.0.11) lib/phusion_passenger/spawn_manager.rb:213:in `spawn_rails_application'
passenger (3.0.11) lib/phusion_passenger/spawn_manager.rb:132:in `spawn_application'
passenger (3.0.11) lib/phusion_passenger/spawn_manager.rb:275:in `handle_spawn_application'
passenger (3.0.11) lib/phusion_passenger/abstract_server.rb:357:in `__send__'
passenger (3.0.11) lib/phusion_passenger/abstract_server.rb:357:in `server_main_loop'
passenger (3.0.11) lib/phusion_passenger/abstract_server.rb:206:in `start_synchronously'
passenger (3.0.11) helper-scripts/passenger-spawn-server:99

Rendering /var/www/proyectos/public/500.html (500 Internal Server Error)

-
Thanks in advance, success activities.
Mike.