Can not edit / delete a task > /users/1/todos/1/edit cause 404

[Interchouette]

ctionView::MissingTemplate (Missing template mytodos/show.erb in view path vendor/plugins/redmine_todos_plugin/app/views:app/views): app/controllers/application_controller.rb:474:in default_template' vendor/plugins/redmine_todos_plugin/app/controllers/todos_controller.rb:56:inshow' vendor/plugins/redmine_todos_plugin/app/controllers/todos_controller.rb:55:in show' /usr/lib/ruby/1.8/mongrel/rails.rb:76:inprocess' /usr/lib/ruby/1.8/mongrel/rails.rb:74:in synchronize' /usr/lib/ruby/1.8/mongrel/rails.rb:74:inprocess' /usr/lib/ruby/1.8/mongrel.rb:159:in process_client' /usr/lib/ruby/1.8/mongrel.rb:158:ineach' /usr/lib/ruby/1.8/mongrel.rb:158:in process_client' /usr/lib/ruby/1.8/mongrel.rb:285:inrun' /usr/lib/ruby/1.8/mongrel.rb:285:in initialize' /usr/lib/ruby/1.8/mongrel.rb:285:innew' /usr/lib/ruby/1.8/mongrel.rb:285:in run' /usr/lib/ruby/1.8/mongrel.rb:268:ininitialize' /usr/lib/ruby/1.8/mongrel.rb:268:in new' /usr/lib/ruby/1.8/mongrel.rb:268:inrun' /usr/lib/ruby/1.8/mongrel/configurator.rb:282:in run' /usr/lib/ruby/1.8/mongrel/configurator.rb:281:ineach' /usr/lib/ruby/1.8/mongrel/configurator.rb:281:in run' /usr/lib/ruby/1.8/mongrel/command.rb:212:inrun'