Turned caching off in production in the hope of solving issue:
undefined method `page_cache_directory' for ActionController::Base:Class
Added method to ActionController to solve

    undefined method `page_cache_directory' for ActionController::Base:Class

error in production
Fixed production issue
undefined method `page_cache_directory' for ActionController::Base:Class

by putting this in production.rb
  config.action_controller.perform_caching = false

and this in application_helper.rb
 module ActionController
  class Base
    def Base.page_cache_directory
      Rails.public_path
    end
  end
 end