NoMethodError in Boost#archives

Showing boost/links.html.erb where line #17 raised:

undefined method `strftime' for "2010/9/25/":String

Extracted source (around line #17):

14:     <% @links.each do |l|
15:        title, date, uname = l
16:      %>
17:         <li><%=@boost.date_format(date)%>&nbsp;&nbsp;&nbsp;<a href="/perm/<%=uname%>"><%=title%></a></li>
18:     <% end %>
19:     </ul>
20: 

RAILS_ROOT: /usr/wp/trunk/wp/wp

Application Trace | Framework Trace | Full Trace
app/models/boost.rb:203:in `date_format'
app/views/boost/links.html.erb:17:in `_run_erb_47app47views47boost47links46html46erb'
app/views/boost/links.html.erb:14:in `each'
app/views/boost/links.html.erb:14:in `_run_erb_47app47views47boost47links46html46erb'
app/views/boost/links.html.erb:7:in `_run_erb_47app47views47boost47links46html46erb'
app/controllers/boost_controller.rb:52:in `archives'
app/controllers/wpress_controller.rb:90:in `_call_action'
app/controllers/wpress_controller.rb:120:in `pass_boost_content'
app/controllers/wpress_controller.rb:10:in `pass'

Request

Parameters:

{"from_wpress"=>true,
 "id"=>nil,
 "request_host"=>"mommysonlinegaragesale.com",
 "day"=>nil,
 "host"=>"mommysonlinegaragesale.com",
 "path"=>"/perm",
 "request_path"=>"/perm"}

Show session dump

Response

Headers:

{"cookie"=>[],
 "Cache-Control"=>"no-cache"}