CentOS Version: CentOS 6 32bit Centmin Mod Version Installed: 123.08stable Nginx Version Installed: 1.13.1 PHP Version Installed: 5.5.38 MariaDB MySQL Version Installed:10.0.31 When was last time updated Centmin Mod code base ? : Never Persistent Config: Do you have any persistent config file options set in /etc/centminmod/custom_config.inc ? No I set abc.mydomain.com pointed to mydomain.com/abc, and now the webpage showing a captcha image is not shown at all under abc.mydomain.com/somepage.html, but if you visit from mydomain.com/abc/somepage.html, it is shown properly. Another problem is, the search section under abc.mydomain.com/somepage.html will go blank when you try to submit a search form, and it is working via mydomain.com/abc/somepage.html. As I remembered, no problem showed at all using the old centminmod until a recently migration. Help, please.