Page render error 
ActionView::TemplateError (undefined method `<<' for nil:NilClass) on line #1 of app/views/pages/_page_news.haml:
1: - module_center do 
2:   - @teasers = teasers_for("news")
3:   - @navigation_id = "home.news"
4:   - page_title _("News"), :image => "news_r"

    haml (2.0.9) lib/haml/helpers.rb:289:in `haml_concat'
    haml (2.0.9) lib/haml/helpers.rb:384:in `haml_tag'
    app/helpers/application_helper.rb:834:in `module_center'
    haml (2.0.9) lib/haml/helpers.rb:382:in `call'
    haml (2.0.9) lib/haml/helpers.rb:382:in `haml_tag'
    app/helpers/application_helper.rb:833:in `module_center'
    haml (2.0.9) lib/haml/helpers.rb:382:in `call'
    haml (2.0.9) lib/haml/helpers.rb:382:in `haml_tag'
    app/helpers/application_helper.rb:827:in `module_center'
    app/views/pages/_page_news.haml:1:in `_run_haml_app47views47pages47_page_news46haml_locals_object_page_news'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_view/renderable.rb:34:in `send'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_view/renderable.rb:34:in `render'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_view/base.rb:306:in `with_template'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_view/renderable.rb:30:in `render'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_view/renderable_partial.rb:20:in `render'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:30:in `benchmark'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_view/renderable_partial.rb:19:in `render'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_view/template.rb:205:in `render_template'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_view/renderable_partial.rb:44:in `render_partial'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_view/partials.rb:184:in `render_partial'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_view/base.rb:267:in `render_without_haml'
    haml (2.0.9) lib/haml/helpers/action_view_mods.rb:14:in `render'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/base.rb:962:in `render_without_benchmark'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:51:in `render'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:51:in `render'
    app/controllers/pages_controller.rb:88:in `show'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/base.rb:1331:in `send'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/base.rb:1331:in `perform_action_without_filters'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/filters.rb:617:in `call_filters'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/filters.rb:610:in `perform_action_without_benchmark'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/benchmarking.rb:68:in `perform_action_without_rescue'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/rescue.rb:160:in `perform_action_without_flash'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/flash.rb:151:in `perform_action'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/base.rb:532:in `send'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/base.rb:532:in `process_without_filters'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/filters.rb:606:in `sass_old_process'
    haml (2.0.9) rails/./lib/sass/plugin/rails.rb:19:in `process'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/base.rb:391:in `process'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/base.rb:386:in `call'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/routing/route_set.rb:438:in `call'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:87:in `dispatch'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:121:in `_call'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:130:in `build_middleware_stack'
    /home/morn/alaplaya/current/gems/activerecord-2.3.8/lib/active_record/query_cache.rb:29:in `call'
    /home/morn/alaplaya/current/gems/activerecord-2.3.8/lib/active_record/query_cache.rb:29:in `call'
    /home/morn/alaplaya/current/gems/activerecord-2.3.8/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
    /home/morn/alaplaya/current/gems/activerecord-2.3.8/lib/active_record/query_cache.rb:9:in `cache'
    /home/morn/alaplaya/current/gems/activerecord-2.3.8/lib/active_record/query_cache.rb:28:in `call'
    /home/morn/alaplaya/current/gems/activerecord-2.3.8/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
    omniauth (1.0.0) lib/omniauth/strategy.rb:168:in `call!'
    omniauth (1.0.0) lib/omniauth/strategy.rb:148:in `call'
    omniauth (1.0.0) lib/omniauth/builder.rb:30:in `call'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/string_coercion.rb:25:in `call'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/params_parser.rb:15:in `call'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/session/cookie_store.rb:99:in `call'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/failsafe.rb:26:in `call'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:106:in `call'
    config/initializers/mongrel.rb:68:in `dispatch_cgi'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:101:in `dispatch_cgi'
    /home/morn/alaplaya/current/gems/actionpack-2.3.8/lib/action_controller/dispatcher.rb:27:in `dispatch'