Pb when adding and delete a project to a client

[pydubreucq]

Hi,
I've problem on the edit compagnies page.
When I link/add a project, I've see this error :

Internal error
An error occurred on the page you were trying to access.
If you continue to experience problems please contact your ChiliProject administrator for  assistance.
If you are the ChiliProject administrator, check your log files for details about the error.
Back

I've this error too when I delete the link.

On my log I have :

Processing CompaniesController#add_projects (for 192.168.27.113 at 2013-03-14 11:09:01) [POST]
Parameters: {"commit"=>"Ajouter", "action"=>"add_projects", "authenticity_token"=>"MNEFSk8r4uPlfkCXit81dQushENwzK6vHU8fX0IXZJ4=", "id"=>"ambremkg", "project_search"=>"", "project_ids"=>["1"], "controller"=>"companies"}

ActionView::TemplateError (undefined method `[]' for nil:NilClass) on line #1 of vendor/plugins/vendor/plugins/chiliproject_companies/app/views/companies/_projects.html.erb:
1: <% if @settings['auto_calculate_projects'] %>
2:   <p>Proyects will be linked based on users. If you want to indicate proyects manually, you may change the plugin configuration</p>
3: <% else %>
4:   <div class="splitcontentleft">

vendor/plugins/vendor/plugins/chiliproject_companies/app/views/companies/_projects.html.erb:1
vendor/plugins/vendor/plugins/chiliproject_companies/app/controllers/companies_controller.rb:86:in `add_projects'
/usr/lib/ruby/1.8/phusion_passenger/rack/request_handler.rb:92:in `process_request'
/usr/lib/ruby/1.8/phusion_passenger/abstract_request_handler.rb:207:in `main_loop'
/usr/lib/ruby/1.8/phusion_passenger/railz/application_spawner.rb:418:in `start_request_handler'
/usr/lib/ruby/1.8/phusion_passenger/railz/application_spawner.rb:358:in `handle_spawn_application'
/usr/lib/ruby/1.8/phusion_passenger/utils.rb:184:in `safe_fork'
/usr/lib/ruby/1.8/phusion_passenger/railz/application_spawner.rb:354:in `handle_spawn_application'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:352:in `__send__'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:352:in `main_loop'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:196:in `start_synchronously'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:163:in `start'
/usr/lib/ruby/1.8/phusion_passenger/railz/application_spawner.rb:213:in `start'
/usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:262:in `spawn_rails_application'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server_collection.rb:126:in `lookup_or_add'
/usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:256:in `spawn_rails_application'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server_collection.rb:80:in `synchronize'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server_collection.rb:79:in `synchronize'
/usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:255:in `spawn_rails_application'
/usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:154:in `spawn_application'
/usr/lib/ruby/1.8/phusion_passenger/spawn_manager.rb:287:in `handle_spawn_application'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:352:in `__send__'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:352:in `main_loop'
/usr/lib/ruby/1.8/phusion_passenger/abstract_server.rb:196:in `start_synchronously'
/usr/lib/phusion_passenger/passenger-spawn-server:61

Rendering /usr/local/share/chiliproject/public/500.html (500 Internal Server Error)

Despite that display error, the project is well connected to the company.

ruby -v
ruby 1.8.7 (2010-08-16 patchlevel 302) [x86_64-linux]

ChiliProject 3.7.0.63976e652