Fix bug.

config/routes.rb

@@ -1,4 +1,5 @@
 Rails.application.routes.draw do
+  if ENV['worker_num']=='0' && File.basename($0) != 'rake' && !Rails.const_defined?('Console')
     Thread.new do
       c = Cancerpredictfields.last
       if c
@@ -7,6 +8,7 @@ Rails.application.routes.draw do
         c.auto_write_predict_js
       end
     end
+  end
   locales = Site.first.in_use_locales rescue I18n.available_locales
   
   scope "(:locale)", locale: Regexp.new(locales.join("|")) do