Redmine 4.1.1

app/views/common/error.html.erb

@@ -3,6 +3,11 @@
 <% if @message.present? %>
   <p id="errorExplanation"><%= @message %></p>
 <% end %>
+
+<% if @archived_project && User.current.admin? %>
+  <p><%= link_to l(:button_unarchive), unarchive_project_path(@archived_project), :method => :post, :class => 'icon icon-unlock' %></p>
+<% end %>
+
 <p><a href="javascript:history.back()"><%= l(:button_back) %></a></p>
 
 <% html_title @status %>