Fatal error: Uncaught Error: Call to undefined function add_filter() in /opt/bitnami/wordpress-rendytrendy/htdocs/wp-content/plugins/better-wp-security_original/core/modules/ban-users/class-itsec-ban-users.php:40 Stack trace: #0 /opt/bitnami/wordpress-rendytrendy/htdocs/wp-content/plugins/better-wp-security_original/core/modules/ban-users/class-itsec-ban-users.php(58): ITSEC_Ban_Users->add_hooks() #1 /opt/bitnami/wordpress-rendytrendy/htdocs/wp-content/plugins/better-wp-security_original/core/modules/ban-users/class-itsec-ban-users.php(10): ITSEC_Ban_Users->init() #2 /opt/bitnami/wordpress-rendytrendy/htdocs/wp-content/plugins/better-wp-security_original/core/modules/ban-users/class-itsec-ban-users.php(15): ITSEC_Ban_Users->__construct() #3 /opt/bitnami/wordpress-rendytrendy/htdocs/wp-content/plugins/better-wp-security_original/core/modules/ban-users/class-itsec-ban-users.php(149): ITSEC_Ban_Users::get_instance() #4 /opt/bitnami/wordpress-rendytrendy/htdocs/wp-content/plugins/better-wp-security_original/core/modules/ban-users/activate.php(3): require_once('...') #5 {main} thrown in /opt/bitnami/wordpress-rendytrendy/htdocs/wp-content/plugins/better-wp-security_original/core/modules/ban-users/class-itsec-ban-users.php on line 40