Fix nil errors bugs

app/helpers/refinery/news/items_helper.rb

@@ -24,7 +24,7 @@ module Refinery
           truncate(item.body, {
             :length => Refinery::Setting.find_or_set(:news_item_teaser_length, 250),
             :preserve_html_tags => true
-          }).html_safe
+          }).try(:html_safe)
         end
       end
 

app/views/refinery/news/items/show.html.erb

@@ -9,7 +9,7 @@
         <small><%= t('.source') %> <%= @item.source %></small>
       </p>
     <% end %>
-    <%= @item.body.html_safe %>
+    <%= @item.body.try(:html_safe) %>
     <p>
       <%= link_to t('.back_to_index'), refinery.news_items_path %>
     </p>