Redmine

Hello

I already check this link ( https://www.redmine.org/projects/redmine/repository/revisions/14155 )

but when i faced system error code 500 , log didn't written to log file ( $PATH/log/production.log )

thx

our system below

Environment:
Redmine version 3.1.0.stable
Ruby version 1.9.3-p0 (2011-10-30) [x86_64-linux]
Rails version 4.2.3
Environment production
Database adapter Mysql2
SCM:
Subversion 1.8.13
Git 1.7.1
Filesystem
Redmine plugins:
clipboard_image_paste 1.10
progressive_projects_list 2.0.1
redmine_ckeditor 1.1.2
redmine_issue_checklist 2.0.5
redmine_issue_templates 0.1.0