Error reading setting in wiki

Question

Hi,
    i met a problem in lion server. When i open the wiki server admin, it showing "error reading setting " and the safari showing:
Collaboration::NSInvalidArgumentException in  Sources#index
  Showing /usr/share/collabd/coreclient/app/views/layouts/application.html.erb where line #5 raised: 
-[__NSCFDictionary setObject:forKey:]: attempt to insert nil value (key: com.apple.server.collab.DBConn)
Extracted source (around line #5):
2:      :user => @user,3:      :entity => @entity,4:      :owner => @owner,5:      :service_client => service_client,6:      :controller => controller7: }) %>8:
Rails.root: /usr/share/collabd/coreclient
    Application Trace |    Framework Trace |    Full Trace          
app/controllers/application_controller.rb:347:in `service_client'app/views/layouts/application.html.erb:5:in `_app_views_layouts_application_html_erb___1616978790_2229921480_0'app/controllers/application_controller.rb:44:in `render_server_error'app/controllers/application_controller.rb:43:in `render_server_error'
Request
Parameters:
None
Show session dump
Show env dump
Response
Headers:
None

Answer 1

Solved! At least for me...
I have described all solutions to the major problems I've been having from a crippled 10.7.3 install to a flourishing one here:https://discussions.apple.com/message/17740033#17740033
Hope this helps!