Fatal error: Uncaught Error: Call to undefined function add_action() in /home/antenaserwis/public_html/satserwis/wp-content/plugins/ithemes-security-pro/core/admin-pages/page-settings.php:18 Stack trace: #0 /home/antenaserwis/public_html/satserwis/wp-content/plugins/ithemes-security-pro/core/admin-pages/page-settings.php(52): ITSEC_Settings_Page->__construct() #1 /home/antenaserwis/public_html/satserwis/wp-content/plugins/ithemes-security-pro/core/admin-pages/page-settings.php(674): ITSEC_Settings_Page::get_instance() #2 {main} thrown in /home/antenaserwis/public_html/satserwis/wp-content/plugins/ithemes-security-pro/core/admin-pages/page-settings.php on line 18