Profile Global and Others' tabs broken

[colinmollenhour]

These tabs return 500 response. I think it is because I deleted the original Admin user.

Started GET "/profiles?action=index&controller=profiles&tab=others" for 127.0.0.1 at 2016-05-19 16:28:03 -0400
Processing by ProfilesController#index as HTML
  Parameters: {"tab"=>"others"}
  Rendered profiles/_import.html.erb (3.0ms)
  Rendered profiles/_table.html.erb (20.4ms)
  Rendered profiles/index.html.erb within layouts/application (25.7ms)
Completed 500 Internal Server Error in 83ms (ActiveRecord: 10.2ms)

ActionView::Template::Error (No route matches {:action=>"show", :controller=>"users", :id=>nil} missing required keys: [:id]):
    167:                         <% if profile.owner == current_user %>
    168:                             <span class="label">You</span>
    169:                         <% else %>
    170:                             <%= link_to profile.owner, user_path( profile.owner ) %>
    171:                     <% end %>
    172:                     </td>
    173:                 <% end %>
  app/views/profiles/_table.html.erb:170:in `block in _app_views_profiles__table_html_erb___4138441391663861063_40982680'
  app/views/profiles/_table.html.erb:145:in `_app_views_profiles__table_html_erb___4138441391663861063_40982680'
  app/views/profiles/index.html.erb:34:in `_app_views_profiles_index_html_erb__1721175088394700753_41147920'
  app/controllers/profiles_controller.rb:24:in `index'

[Zapotek]

Wow, this one slipped through the cracks, I'll have a look at it soon but yes it's because the owner (admin in this case) was deleted.
Sorry for the delay.