Redmine

Hi all,

when I create a new project in my Redmine, it will always end up with 500 Internal Server Error message, when I press the back button, the project is created and I can work with it, I can maintain it, everything, no further errors will occur in other sections... see below the error from production.log.

Please help
Thanks,
sakal

Completed 200 OK in 134ms (Views: 109.9ms | ActiveRecord: 1.6ms)
Started POST "/projects" for 15.195.185.76 at 2015-04-26 20:25:02 +0200
Processing by ProjectsController#create as HTML
  Parameters: {"utf8"=>"â", "authenticity_token"=>"M8AVxYzbKmhYEnq4IAfWgZVy/qTVcIv1ydmKk2FXSBO8zasOu3ue0+77tX87Vr+vLWj92Is6D7oepFm8eRNlLg==", "project"=>{"name"=>"test", "description"=>"", "identifier"=>"test", "homepage"=>"", "is_public"=>"1", "inherit_members"=>"0", "enabled_module_names"=>["issue_tracking", "time_tracking", "news", "documents", "files", "wiki", "repository", "boards", "calendar", "gantt", ""], "tracker_ids"=>["1", "2", "3", ""]}, "commit"=>"Create"}
  Current user: admin (id=1)
  Rendered projects/_form.html.erb (14.4ms)
  Rendered projects/new.html.erb within layouts/base (15.9ms)
Completed 500 Internal Server Error in 80ms

NoMethodError (private method `cache_configured?' called for ProjectsController:Class):
  app/controllers/caching.rb:68:in `cache_configured?'
  app/controllers/projects_controller.rb:31:in `block in <class:ProjectsController>'